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The one thing stopping jellyfish from taking over - Mariela Pajuelo & Javier Antonio Quinones

Video vocabulary

area

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US / 'eərɪə /

UK / ˈɛriə /

A1
  • noun
  • Amount of measured space
  • A specific section or space; part of a region
  • A subject or field of study

capture

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US / 'kæptʃə(r) /

UK / ˈkæptʃɚ /

B1
  • verb
  • To attract and hold e.g. interest, attention
  • To record, tape, or film something
  • To catch and prevent from being free
  • To take control of a place or object by force

gonad

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US / ˈgəʊnæd /

UK / ˈɡoˌnæd /

A1
  • noun
  • Gland in which gametes (sex cells) are produced

healthy

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US / ˈhelθi /

UK / ˈhɛlθi /

A1
  • adjecitve
  • In good condition physically, or financially; well

marine

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US / mə'ri:n /

UK / məˈrin /

B1
  • adjecitve
  • Of the ocean or ocean plants and animals
  • Concerning sailing or doing business by sea
  • noun
  • Soldier trained to serve on land and sea

past

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US / pɑ:st /

UK / pæst /

A2
  • adjecitve
  • No longer current or new
  • adverb
  • So as to go beyond, or further than something
  • noun
  • Time that existed before now, e.g. long ago
  • preposition
  • After a particular time
  • At a later point in distance; beyond

reproductive

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US / ˌri:prəˈdʌktɪv /

UK / ˌriprəˈdʌktɪv /

B1
  • adjecitve
  • Concerning the process of making children
  • Relating to having children, young, or new plants

ste

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US / ˈstætʃu:t /

UK / ˈstætʃut /

A1

fortunately

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US / ˈfɔ:tʃənətli /

UK / ˈfɔ:rtʃənətli /

A2
  • adverb
  • Through good luck; luckily

population

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US / ˌpɒpjuˈleɪʃn /

UK / ˌpɑpjəˈleʃən /

A2
  • noun
  • Number of people who live in a country, area etc.

true

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US / tru: /

UK / tru: /

A1
  • adjecitve
  • Agreeing with the facts; not false; real or actual

clog

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US / klɒg /

UK / klɑ:g /

B2
  • noun
  • Heavy shoe with a thick or wooden bottom
  • verb
  • To make or become blocked or filled with something

use

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US / ju:s /

UK / ju:s /

A1
  • noun
  • Ability to employ something
  • Need to enable it to work
  • Permission to do something with something
  • Act of spending money
  • Operation of a machine for its function
  • verb
  • To have; to eat, drink, consume etc.
  • To need to operate or work
  • To operate a machine, e.g. a computer
  • To treat a person badly
  • To do something with, for a task or purpose

contain

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US / kənˈteɪn /

UK / kənˈten /

A2
  • verb
  • To keep something from spreading
  • To hold something inside something else

eat

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US / i:t /

UK / it /

A1
  • verb
  • To put food in your mouth

million

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US / ˈmɪljən /

UK / ˈmɪljən /

A1
  • number
  • 1,000,000

once

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US / wʌns /

UK / wʌns /

A1
  • adverb
  • One time; one instance
  • At a time in the past
  • conjunction
  • When; as soon as

piano

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US / piˈænəʊ /

UK / piˈæno, ˈpjæno /

A2
  • adjecitve
  • In a soft and quiet manner (on the piano)
  • noun
  • Keyboard instrument used for playing music

while

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US / waɪl /

UK / hwaɪl, waɪl /

A1
  • conjunction
  • In spite of the fact that; although
  • During the time that; at the same time
  • noun
  • Short amount of time

massive

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US / ˈmæsɪv /

UK / ˈmæsɪv /

B1
  • adjecitve
  • Very big; large; too big

should

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US / ʃʊd /

UK / ʃʊd /

A1
  • other
  • Used to indicate what is proper or reasonable

among

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US / əˈmʌŋ /

UK / əˈmʌŋ /

A1
  • preposition
  • In the center of several things

asexually

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US / ˌeɪˈsekʃəli /

UK / ˌeɪˈsekʃəli /

C1
  • adverb
  • Without having sex

new

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US / nju: /

UK / nu, nju /

A1
  • adjecitve
  • Not old, recently born, built or made
  • Being or doing something for the first time
  • Not felt, seen or known previously
  • Having been recently bought or obtained

thick

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US / θɪk /

UK / θɪk /

A2
  • adjecitve
  • Difficult to see through, as fog
  • Full of (people, etc.)
  • (Of a liquid) that moves or pours slowly
  • Stupid; not smart
  • (Of person's accent) hard to understand
  • Having a large distance between two surfaces

tool

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US / tu:l /

UK / tul /

A2
  • noun
  • Device used to make things, e.g. a hammer
  • verb
  • To provide a workshop with the right equipment

try

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US / traɪ /

UK / traɪ /

A1
  • noun
  • Act of putting the ball over the rugby goal line
  • verb
  • To make an effort, to attempt to do something
  • To examine someone or something in a court of law
  • To test to see if it is good or you like it
  • To make a person go through hardship; test
  • To examine something to see if it works

day

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US / deɪ /

UK / de /

A1
  • noun
  • A period of 24 hours beginning at midnight
  • The period of time when it is light outside
  • Person's name

develop

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US / dɪ'veləp /

UK / dɪˈvɛləp /

A1
  • verb
  • To explain something in steps and in detail
  • To create or think of something
  • To grow bigger, more complex, or more advanced
  • To make a photograph from film

dramatically

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US / drə'mætɪklɪ /

UK / drəˈmætɪkl:ɪ /

B1
  • adverb
  • In a sudden or extreme manner

point

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US / pɔɪnt /

UK / pɔɪnt /

A1
  • noun
  • An item to be discussed
  • Small spot or dot
  • Fact or detail
  • Feature of something
  • The size of the text on a page or screen
  • A certain time or stage in a process
  • Certain position in time or space
  • Idea or fact you try to convince people about
  • Measurement of scores in a game, sport
  • Sharp end of something, e.g. a pen or pin
  • verb
  • To face a certain direction, e.g. north
  • To indicate something with your finger to others

runoff

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US / 'rʌnˌɔ:f /

UK / ˈrʌnˌɔf, -ˌɑf /

C2
  • noun
  • A second election to find a winner

already

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US / ɔ:lˈredi /

UK / ɔlˈrɛdi /

A1
  • adverb
  • Having happened or been done before this time

many

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US / 'menɪ /

UK / ˈmɛni /

A1
  • determiner
  • Used to refer a large number of things

net

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US / net /

UK / nɛt /

A2
  • adjecitve
  • Remaining amount after something is taken away
  • noun
  • Internet
  • Crossed rope, fibers with partly open pattern
  • Crossed ropes that make up the back of a goal
  • verb
  • To catch or cover something in a mesh, often fish
  • To gain or earn a certain amount of money
  • To hit a ball into a goal during a sports event

swarm

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US / swɔ:m /

UK / swɔrm /

B1
  • noun
  • Large group of flying insects moving together
  • (Of people) large group of people acting as one
  • verb
  • (Of bees) to form a group and leave the bee hive
  • (Of people) to form a crowd and move together

thousand

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US / ˈθaʊznd /

UK / ˈθaʊzənd /

A1
  • number
  • Number 1,000

bagpipe

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US / 'bæɡpaɪp /

UK / 'bæɡpaɪp /

C2
  • noun
  • Scottish wind instrument with a bag and pipes

all

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US / ɔ:l /

UK / ɔl /

A1
  • adverb
  • Completely; totally
  • determiner
  • Being every one of something
  • pronoun
  • 100% of something; the complete amount

fisher

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US / 'fɪʃə(r) /

UK / 'fɪʃər /

A1
  • other
  • Large dark brown North American arboreal carnivorous mammal

irritate

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US / 'ɪrɪteɪt /

UK / ˈɪrɪˌtet /

B1
  • verb
  • To disturb, anger, or upset someone
  • To make part of the body feel soreness and pain

pacific

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US / pə'sɪfɪk /

UK / pəˈsɪfɪk /

A1
  • adjecitve
  • Relating to or bordering the Pacific Ocean
  • Concerned with peace or of a peaceful nature

both

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US / bəuθ /

UK / boθ /

A1
  • determiner
  • Used to refer to two things at the same time
  • pronoun
  • Used to refer to two things at the same time

change

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US / tʃeɪndʒ /

UK / tʃendʒ /

A1
  • noun
  • Exchange of one set of clothes for another
  • Money in the form of coins instead of paper
  • Money returned after giving too much
  • Act of making or becoming something else
  • verb
  • To exchange one set of clothes for another
  • To exchange one kind of money for another
  • To replace something with another thing
  • To make or become something else
  • To go from one train, bus, etc. and go to another

reactor

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US / riˈæktə(r) /

UK / riˈæktɚ /

B1
  • noun
  • Device to control nuclear energy as a power source

selectively

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US / sɪ'lektɪvlɪ /

UK / sɪ'lektɪvlɪ /

A2
  • adverb
  • Only remembering what you want to

moon

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US / mu:n /

UK / mun /

A2
  • noun
  • Round object circling the Earth at night
  • verb
  • To expose your buttocks as a joke

nematocyst

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US / /

UK / /

A1
  • noun
  • A specialized cell in the tentacles of a jellyfish or other coelenterate, containing a barbed or ven

multiply

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US / ˈmʌltɪplaɪ /

UK / ˈmʌltəˌplaɪ /

B1
  • verb
  • To increase in number by reproducing/having babies
  • To increase something by a large quantity
  • To have increased by a large quantity
  • To calculate two numbers e.g. 2 x 4

prey

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US / preɪ /

UK / pre /

B1
  • noun
  • The victim of another person's aggression
  • other
  • The victim of another person's aggression
  • verb
  • To hunt (other animals) in order to eat them
  • To cause another to be a victim

snap

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US / snæp /

UK / snæp /

B1
  • noun
  • An informal word for a photograph
  • verb
  • To close your mouth quickly like biting something
  • To break something dry and thin, e.g. a branch
  • To lose control of your emotions; get angry

minimize

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US / 'mɪnɪmaɪz /

UK / ˈmɪnəˌmaɪz /

B1
  • verb
  • To make something seem small or less important

risk

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US / rɪsk /

UK / rɪsk /

A1
  • noun
  • Actions that cause potential problems
  • verb
  • To do something potentially dangerous or foolish

they

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US / ðeɪ /

UK / ðe /

A1
  • pronoun
  • Two or more people, animals, or things

very

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US / 'verɪ /

UK / ˈvɛri /

A1
  • adjecitve
  • Concerning a large degree or amount
  • adverb
  • A lot; much; many
  • Used to stress or emphasize a noun

diver

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US / ˈdaɪvə(r) /

UK / ˈdaɪvɚ /

B1
  • noun
  • Person swimming under water

defense

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US / dɪ'fens /

UK / dɪˈfɛns /

B1
  • noun
  • Argument in support of something
  • The process of protecting something from attack
  • Part of a team that prevents others from scoring

prove

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US / pru:v /

UK / pruv /

A2
  • verb
  • To demonstrate truth by providing evidence

huge

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US / hju:dʒ /

UK / hjudʒ /

A2
  • adjecitve
  • Very very large

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

way

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US / weɪ /

UK / we /

A1
  • adverb
  • Used to emphasize the amount of something
  • noun
  • Particular aspect of something being thought about
  • One of various choices that could be made
  • Particular existing condition or state
  • (Often long) distance or length of time
  • How something is done
  • Route to go to a place
  • Small street
  • Usual behavior, emotions or habits of someone

useful

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US / ˈju:sfl /

UK / ˈjusfəl /

A1
  • adjecitve
  • That can help with a particular task

constantly

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US / ˈkɒnstəntli /

UK / ˈkɑnstəntlɪ /

B1
  • adverb
  • Frequently, or without pause

introduce

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US / ˌɪntrəˈdju:s /

UK / ˌɪntrəˈdus, -ˈdjus /

A1
  • verb
  • To open an essay to set the scene
  • To guide or explain something, e.g. a town
  • To begin the use of a new thing or practice
  • To make someone known to another by name
  • To insert or put something inside another thing

kilogram

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US / ˈkɪləgræm /

UK / ˈkɪləɡræm /

A2
  • noun
  • 1000g

sweden

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US / 'swi:dn /

UK / 'swi:dn /

A1
  • proper noun
  • A country that occupies the eastern part of the Scandinavian peninsula; population 9,800,000 (estima

speed

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US / spi:d /

UK / spid /

A2
  • noun
  • How fast or slow something is or is done
  • verb
  • To move quickly when completing an action
  • To drive a vehicle faster than laws allow

zealand

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US / ˈzi:lənd /

UK / ˈzilənd /

A1
  • other
  • Largest island of Denmark and the site of Copenhagen

get

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US / ɡet /

UK / ɡɛt /

A1
  • verb
  • To become affected by illness or disease
  • To begin to feel or understand an emotion or idea
  • To send or bring someone or something home, etc.
  • To go somewhere to obtain something
  • To (cause to) do a particular thing
  • To obtain, receive or be given something
  • To currently have
  • To prepare for use
  • To understand something being said or read

particularly

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US / pəˈtikjuləli /

UK / pɚˈtɪkjələli, pəˈtɪk- /

A2
  • adverb
  • Specially; more than others

roughly

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US / ˈrʌfli /

UK / ˈrʌflɪ /

B1
  • adverb
  • Approximately; (of numbers) about; around
  • In a manner that is violent or not careful
  • In an inexact, imprecise or violent way
  • In a basic, simple manner

cnidocyte

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US / /

UK / /

A1

japan

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US / dʒəˈpæn /

UK / dʒəˈpæn /

A1
  • noun
  • A string of more than islands to the east of Asia
  • Lacquer with a durable glossy black finish, originally from the orient
  • Lacquerware decorated and varnished in the Japanese manner with a glossy durable black lacquer
  • verb
  • Coat with a lacquer, as done in Japan

partner

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US / 'pɑ:tnə(r) /

UK / ˈpɑrtnɚ /

A2
  • noun
  • One you have a business/personal relationship with
  • Someone you have personal relationship with
  • verb
  • To join with others for work or other activity

require

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US / rɪ'kwaɪə(r) /

UK / rɪˈkwaɪr /

A2
  • verb
  • To demand that someone does something
  • To need to do something, to make it necessary

cell

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US / sel /

UK / sɛl /

A2
  • noun
  • Smallest unit of living things in biology
  • Group of people - often from a secret organization
  • Prisoner's room in a jail
  • Shortened form of 'cellphone'

each

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US / i:tʃ /

UK / itʃ /

A1
  • determiner
  • Every one of two or more things
  • pronoun
  • Per one person or thing

remarkable

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US / rɪˈmɑ:kəbl /

UK / rɪˈmɑrkəbəl /

A2
  • adjecitve
  • Interesting and unexpected, worthy of notice

even

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US / 'i:vn /

UK / ˈivən /

A1
  • adjecitve
  • Being equal in influence, power, possibility etc.
  • Being divided equally or fairly
  • (Of teams/contest) with similar chances of success
  • Smooth, level, or regular
  • Can be divided by 2; ending in 2, 4, 6, 8, or 0
  • At a regular, equally steady manner
  • Remaining steady and unchanging
  • adverb
  • (When this is surprising) as well; too
  • (Used to compare two things/stress the difference)
  • verb
  • To make something level; to flatten
  • To make something equal

impact

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US / 'ɪmpækt /

UK / ˈɪmˌpækt /

A2
  • noun
  • A striking effect or result to hit with force
  • Very strong influence
  • Act or force of one thing hitting something else
  • verb
  • To hit or strike someone or something with force

current

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US / 'kʌrənt /

UK / ˈkɚrənt, ˈkʌr- /

A2
  • adjecitve
  • Happening or being in the present time
  • noun
  • Electricity flowing through wires
  • Movement of water in a river, or air in the sky

like

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US / laɪk /

UK / laɪk /

A1
  • adjecitve
  • Being equal in status or kind to something else
  • Similar; the same
  • adverb
  • For example
  • preposition
  • Used as a filler; used to ad emphasis
  • In a way similar to the way something is done
  • Such as; for example
  • verb
  • To want to
  • To find something pleasing; to prefer something

nail

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US / neɪl /

UK / nel /

B1
  • noun
  • Pointed piece of metal used to join pieces of wood
  • Hard part at the end of your finger
  • verb
  • To attach things together with metal nails
  • To catch someone doing an illegal activity
  • To complete something perfectly or successfully

shut

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US / ʃʌt /

UK / ʃʌt /

A2
  • verb
  • To stop being open for business
  • To close something, e.g. a door

threat

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US / θret /

UK / θrɛt /

A2
  • noun
  • Warning of probable trouble
  • A warning that you may be harmed

that

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US / ðæt /

UK / ðæt, ðət /

A1
  • adjecitve
  • The person or thing being talked about
  • Used to identify something both the speakers know
  • adverb
  • Used to reinforce adjectives and adverbs
  • To such a degree
  • conjunction
  • Used to connect a noun clause
  • Used to introduce an adverbial clause
  • Used to introduce a noun clause
  • determiner
  • Used as a noun to refer to something
  • pronoun
  • Referring an object far away
  • Used to refer to the relative pronoun ‘which’

egg

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US / eg /

UK / ɛɡ /

A2
  • noun
  • Hard-shelled thing from which a young bird is born

down

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US / daʊn /

UK / daʊn /

A1
  • adjecitve
  • Being sad, sick, or unhappy
  • Not operating, working, or functioning as expected
  • adverb
  • In a sitting or lying position
  • Towards or on the ground, floor, or bottom
  • Written or copied onto a piece of paper or book
  • noun
  • A period of play in American Football
  • The soft, smooth hairs that cover a bird's body
  • preposition
  • Along something's path, course, or direction
  • Going from a higher position to a lower position
  • verb
  • To eat or drink very quickly and without stopping

practice

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US / 'præktɪs /

UK / ˈpræktɪs /

A2
  • noun
  • The office and place for legal or medical work
  • Doing something many times to become better at it
  • verb
  • To work as a doctor or lawyer
  • To live according to the teachings of a religion
  • To do something many times to improve a skill

sea

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US / /

UK / /

A1
  • noun
  • Very large group of people, similar-looking things
  • Large body of salty water with land around it

cause

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US / kɔ:z /

UK / kɔz /

A2
  • noun
  • Belief, goal or organization that people support
  • Reason for
  • verb
  • To make something happen; create effect or result

devour

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US / dɪˈvaʊə(r) /

UK / dɪˈvaʊr /

B2
  • verb
  • To eat quickly and hungrily

number

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US / ˈnʌmbə(r) /

UK / ˈnʌmbɚ /

A1
  • noun
  • Symbols such as 1, 2, 56, 793
  • Particular song or dance performed during a show
  • Total quantity or amount of things
  • verb
  • To put numbers on things
  • To assign a sequence within a group, series, set
  • To claim to be part of a larger group, series, set

stay

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US / steɪ /

UK / ste /

A1
  • noun
  • Legal order to stop or delay an action
  • Strong rope or wire that supports a ship's mast
  • Period of time spent living in or visiting a place
  • verb
  • To keep trying without giving up
  • To remain in the same place and not move away
  • To spend time visiting a place or someone's home

specie

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US / 'spi:ʃi: /

UK / 'spi:ʃɪ /

B1
  • noun
  • Singular of species

venomous

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US / ˈvenəməs /

UK / ˈvɛnəməs /

B2
  • adjecitve
  • Extremely poisonous or injurious; producing venom

lead

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US / li:d /

UK / lid /

A1
  • adjecitve
  • Being the main part in movies or plays
  • noun
  • Wire for electricity, computer, etc.; cable
  • Information that could help to solve a crime
  • Main part in a play or movie
  • Heavy, gray metal element
  • Rope used to tie something to stop it escaping
  • Act of being at the front in a race or game
  • verb
  • To show the way or guide others
  • To be at the front of a race or game
  • To travel in front of; go in advance of others

natural

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US / ˈnætʃərəl /

UK / ˈnætʃərəl, ˈnætʃrəl /

A1
  • adjecitve
  • Being as one would expect; being usual or normal
  • Not made by humans; without human intervention

material

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US / məˈtɪəriəl /

UK / məˈtɪriəl /

A2
  • adjecitve
  • Relevant; (of evidence) important or significant
  • Belonging to the world of physical things
  • noun
  • Cloth; fabric
  • Supplies or data needed to do a certain thing
  • Substance from which a thing is made of

researcher

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US / rɪ'sɜ:tʃə(r) /

UK / rɪˈsətʃɚ /

A2
  • noun
  • Someone who works to find new facts and ideas

rate

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US / reɪt /

UK / ret /

A1
  • noun
  • Current price or cost of something
  • Speed or frequency of events over time
  • verb
  • To assess something or consider its qualities

the

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US / ðə /

UK / ðə /

A1
  • article
  • Used to refer to something already mentioned
  • Used to show there is only one of something
  • determiner
  • Used to describe all of a family

bell

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US / bel /

UK / bɛl /

A2
  • noun
  • Metal object shaped like a cup that rings when hit
  • Electronic device that makes a ringing sound

entire

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US / ɪn'taɪə(r) /

UK / ɛnˈtaɪr /

A2
  • adjecitve
  • Complete or full; with no part left out; whole

lifespan

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US / ˈlaɪfspæn /

UK / ˈlaɪfspæn /

B2
  • noun
  • Length of time something is expected to last

one

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US / wʌn /

UK / wʌn /

A1
  • pronoun
  • You; we; people in general; someone
  • The thing or person previously referred to
  • adjecitve
  • Used to refer to people generally
  • Being a strong example of (something mentioned)
  • number
  • Number 1

other

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US / 'ʌðə(r) /

UK / ˈʌðər /

A1
  • adjecitve
  • A thing different from that mentioned
  • determiner
  • (Something) else; not the first (one)
  • pronoun
  • Being the one and only thing of that category

than

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US / ðən /

UK / ðən /

A1
  • conjunction
  • Used to compare two things that are not equal

contact

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US / 'kɒntækt /

UK / ˈkɑnˌtækt /

A2
  • adjecitve
  • Touching or feeling something
  • noun
  • Touching or feeling something
  • Object that allows electricity to run through it
  • Communication with someone or something
  • People who can give you information, introductions
  • verb
  • To get in touch with someone

leatherback

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US / ˈleðəbæk /

UK / ˈlɛðɚˌbæk /

C2
  • noun
  • Large wide-ranging marine turtle

sexually

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US / 'sekʃəlɪ /

UK / ˈsɛkʃʊəlɪ /

A2
  • adverb
  • In a way or manner that involves sex

season

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US / ˈsi:zn /

UK / ˈsizən /

A1
  • noun
  • One of Spring, Summer, Autumn (Fall) and Winter
  • Time of year when something usually happens
  • verb
  • To add pepper and salt to something
  • To prepare wood for use by allowing it to dry

surface

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US / 'sɜ:fɪs /

UK / ˈsɚfəs /

A2
  • adjecitve
  • Of the top layer; not deep or meaningful
  • noun
  • Top layer of the ground or of water
  • Nature or emotions that show, but may not be true
  • Outside or upper layer of something
  • verb
  • To give (road) a top layer
  • To appear after being hidden, unseen, or unknown
  • To come to the top of something; emerge
  • To come to the top level of water, mud, etc.

temperate

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US / ˈtempərət /

UK / ˈtɛmpərɪt, ˈtɛmprɪt /

B1
  • adjecitve
  • Having weather that is not too hot; mild
  • Having calm, reasonable reactions to things

tropical

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US / ˈtrɒpɪkl /

UK / ˈtrɑpɪkəl /

B1
  • adjecitve
  • Hot and humid; near to the equator

average

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US / 'ævərɪdʒ /

UK / ˈævərɪdʒ, ˈævrɪdʒ /

A2
  • adjecitve
  • Typical or normal; usual; ordinary
  • noun
  • Total of numbers divided by the number of items
  • verb
  • To add numbers then divide by the number of items

intruder

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US / ɪn'tru:də(r) /

UK / ɪn'tru:dər /

B2
  • noun
  • A burglar; robber

make

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US / meɪk /

UK / mek /

A1
  • noun
  • Product made by a particular company; brand
  • verb
  • To arrange or prepare something e.g. dinner
  • To get to (a place) on time
  • To gain the status of (teacher, lawyer, etc.)
  • To create something by putting things together
  • To earn a certain amount of money at a job
  • To cause or force a person to do something
  • To cause something to happen or be formed

pepper

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US / ˈpepə(r) /

UK / ˈpɛpɚ /

B1
  • verb
  • To spread around randomly, as with bullets
  • noun
  • Green, red, or yellow vegetable with hollow center
  • Hard covering of berries used as spices

farming

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US / ˈfɑ:miŋ /

UK / ˈfɑrmɪŋ /

A1
  • noun
  • Act of growing crops or raising animals
  • verb
  • To use land for raising plants or animals for food

impale

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US / ɪmˈpeɪl /

UK / ɪm'peɪl /

C2
  • verb
  • To pierce with a sharp stake or point

solution

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US / səˈlu:ʃn /

UK / səˈluʃən /

A2
  • noun
  • Mix of a liquid and a solid or a gas
  • Way to solve or deal with a problem

dolphin

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US / ˈdɒlfɪn /

UK / ˈdɑ:lfɪn /

B1
  • noun
  • Sea animal like a big fish that breathes air

ready

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US / 'redɪ /

UK / ˈrɛdi /

A1
  • adjecitve
  • Being likely or about to do something
  • Being willing to do a task
  • verb
  • To prepare something for use or action

this

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US / ðɪs /

UK / ðɪs /

A1
  • adjecitve
  • Used to indicate something already been discussed
  • Used to indicate something happening around now
  • adverb
  • An indication by a physical motion or gesture
  • A specific amount of
  • determiner
  • Person, thing, or idea near you
  • pronoun
  • Person, thing that has already been discussed

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

A1
  • adverb
  • In addition; too; in a similar way

climate

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US / ˈklaɪmət /

UK / ˈklaɪmɪt /

A2
  • noun
  • Typical weather conditions in a particular place

live

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US / lɪv /

UK / liv /

A1
  • adjecitve
  • Being broadcast as events happen, not recorded
  • Carrying electric current; able to give a shock
  • Glowing because burning; hot
  • Not yet killed (for food)
  • adverb
  • (Music, drama) as it is performed
  • verb
  • To be alive
  • To experience a particular type of life
  • To make your home in a house or town

how

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US / haʊ /

UK / haʊ /

A1
  • adjecitve
  • To what degree? in what amount?
  • adverb
  • (Used to explain the way to do something)
  • exclamation
  • For what purpose or reason?
  • (Used to ask someone or something's condition)

humanity

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US / hju:ˈmænəti /

UK / hjuˈmænɪti /

A2
  • noun
  • Quality of being understanding or sympathetic
  • Human race as one group of people

routinely

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US / ru:'ti:nlɪ /

UK / ruˈtinlɪ /

A2
  • adverb
  • In a regular, habitual or expected way

year

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US / jə: /

UK / jɪr /

A1
  • noun
  • Unit of time equal to 12 months or 365 or 366 days
  • Used to refer to the age of a person

chemical

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US / ˈkemɪkl /

UK / ˈkɛmɪkəl /

A2
  • adjecitve
  • Made of various elements
  • noun
  • Basic substance produced by mixing elements

essential

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US / ɪ'senʃl /

UK / ɪˈsɛnʃəl /

A2
  • adjecitve
  • Extremely or most important and necessary

grand

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US / ɡrænd /

UK / ɡrænd /

A2
  • adjecitve
  • A counter for 1000 of something
  • Great in amount, number or size
  • Being highest in status or rank; impressive

polyp

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US / ˈpɔlip /

UK / ˈpɑlɪp /

C1
  • noun
  • Small tube-like creature that lives in the ocean
  • Small harmless growth that forms inside the body

any

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US / 'enɪ /

UK / ˈɛni /

A1
  • adjecitve
  • One, or some, no matter which
  • pronoun
  • One (thing) of many; some

calorie

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US / 'kælərɪ /

UK / ˈkæləri /

B2
  • noun
  • Unit for measuring the amount of energy in food

bloom

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US / blu:m /

UK / blum /

B2
  • noun
  • Period of beauty, strength or freshness
  • verb
  • To flower; to produce flowers
  • To achieve an ideal state of beauty and strength

effort

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US / ˈefət /

UK / ˈɛfət /

A2
  • noun
  • Amount of work used trying to do something

inexpensive

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US / ˌɪnɪkˈspensɪv /

UK / ˌɪnɪkˈspɛnsɪv /

B1
  • adjecitve
  • Having a low price; cheap

local

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US / ˈləʊkl /

UK / ˈloʊkl /

A2
  • adjecitve
  • Relating to a particular area, city, or town
  • noun
  • Bus or train, that stops at most stations
  • People who live in the area being discussed
  • The pub you most frequently go to

skin

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US / skɪn /

UK / skɪn /

A2
  • noun
  • Outer covering of an animal used for leather; hide
  • Outer covering of a fruit or vegetable
  • Outer layer of an animal or human
  • Outer part of an object, such as a plane
  • verb
  • To defeat someone easily and completely
  • To hurt yourself, accidentally cutting yourself
  • To remove the outer covering from an animal

grain

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US / greɪn /

UK / ɡren /

B1
  • noun
  • Seeds of plants used for food
  • Natural pattern in something, e.g. wood
  • Very small piece of something such as sand, truth
  • Unit of weight based on a piece of wheat

large

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US / lɑ:dʒ /

UK / lɑ:rdʒ /

A1
  • adjecitve
  • Big; of great size; broad, tall, wide, or fat

most

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US / məʊst /

UK / most /

A1
  • adverb
  • Very; extremely
  • Greatest possible degree
  • pronoun
  • Nearly all of something

reproduction

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US / ˌri:prəˈdʌkʃn /

UK / ˌriprəˈdʌkʃən /

B1
  • noun
  • Act or process of producing a copy of something
  • The process of making children

throughout

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US / θru:ˈaʊt /

UK / θruˈaʊt /

A2
  • adverb
  • From the beginning of something until the end
  • preposition
  • Over/across an entire place/thing; in every part

keep

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US / ki:p /

UK / kip /

A1
  • noun
  • Large, strong tower in the middle of a castle
  • Money spent on you so you can live in a place
  • verb
  • To continue doing something; not to stop
  • To stop balls going in a goal in sports
  • To not give back or return something
  • (Of food) to not spoil or not rot
  • To take possession of something to own, e.g. a pet
  • To have and continue to hold something
  • To do something that you have promised or agreed
  • To stay in a certain place or condition
  • To maintain the rules

larva

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US / ˈlɑ:və /

UK / ˈlɑ:rvə /

B2
  • noun
  • Wormlike young form of some insects

maintain

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US / meɪn'teɪn /

UK / menˈten /

A2
  • verb
  • To keep saying something a certain way
  • To keep (machine) working by checking, repairing
  • To keep, exist or continue without changing

completely

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US / kəmˈpli:tli /

UK / kəmˈpliːtli /

A1
  • adverb
  • In every way or as much as possible

normally

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US / ˈnɔ:məli /

UK / ˈnɔːrməli /

B1
  • adverb
  • In the manner that is usual or ordinary

release

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US / rɪ'li:s /

UK / rɪ'li:s /

A2
  • noun
  • Act of freeing someone from a duty or burden
  • Introduction of a new product, film, book, etc.
  • Relief from sadness, suffering or trouble
  • Act of freeing from a jail, cage, prison, etc.
  • verb
  • To free someone from a responsibility or burden
  • To allow a film, music etc. to be sold/distributed
  • To allow to leave a jail, cage, etc.; let out
  • To let go of something you are holding

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

anything

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US / ˈeniθɪŋ /

UK / ˈɛniˌθɪŋ /

A1
  • pronoun
  • A thing of any kind

escape

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US / ɪ'skeɪp /

UK / ɪˈskep /

A2
  • noun
  • Act to briefly ignoring boring or bad things
  • The 'esc key' on a keyboard
  • Act of getting away from where you are being kept
  • verb
  • To avoid something undesirable, dangerous or bad
  • To get away from a place where you are being kept
  • (Gas, water) to come out from a pipe, container
  • To not to be noticed or remembered by someone

fish

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US / fɪʃ /

UK / fɪʃ /

A1
  • noun
  • Animal that swims and lives in water
  • verb
  • To go fishing with a net or hook

from

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US / frəm /

UK / frʌm, frɑm,frəm /

A1
  • preposition
  • Starting at a particular place, time or level

overwhelm

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US / ˌəʊvəˈwelm /

UK / ˌoʊvərˈwelm /

B1
  • verb
  • To defeat something or someone completely
  • To affect someone emotionally in a strong way
  • To cause to have too much to handle (e.g. work)

out

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US / aʊt /

UK / aʊt /

A1
  • adverb
  • No longer stylish (e.g. fashion)
  • Away from home, business, or the usual place
  • In a direction/movement away from inside or center
  • noun
  • Act when a batter cannot continue playing
  • verb
  • To tell people a secret

over

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US / 'əʊvə(r) /

UK / ˈovɚ /

A1
  • adverb
  • Finished; no longer happening
  • Towards the ground/away from a standing position
  • noun
  • A set of six consecutive balls bowled in cricket
  • other
  • Finished
  • preposition
  • Showing the relation when a thing is above another
  • On or covering something
  • Above or across something
  • More than you need
  • From one side to the other
  • In the direction of; toward

resource

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US / riˈsɔ:s /

UK / ˈriˌsɔrs, -ˌsors, -ˌzɔrs, -ˌzors, rɪˈsɔrs, -ˈsors, /

A2
  • noun
  • Something that can be used profitably; asset
  • An essential supply of something
  • Resourcefulness; ability to deal with problems
  • verb
  • To obtain (e.g. oil, gas) from its source

temperature

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US / ˈtemprətʃə(r) /

UK / ˈtɛmpərəˌtʃʊr,-tʃɚ,ˈtɛmprə- /

A2
  • noun
  • When you your body heat is above normal
  • How hot or cold something is, e.g. the weather

ancient

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US / 'eɪnʃənt /

UK / ˈenʃənt /

A2
  • adjecitve
  • Very old; having lived a very long time ago

environment

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US / ɪn'vaɪrənmənt /

UK / ɛnˈvaɪrənmənt, -ˈvaɪən- /

A1
  • noun
  • Natural world in which plants and animals live
  • The entire surrounding conditions of something

issue

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US / 'ɪʃu: /

UK / ˈɪʃu /

A2
  • noun
  • Important topic discussed, debated or argued over
  • Single edition of a magazine
  • verb
  • To make something available to be used or sold
  • To deliver a statement, etc. in an official manner

ton

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US / tʌn /

UK / tʌn /

A2
  • noun
  • Unit of weight; 907 kilograms (US); 1016 (UK)

and

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US / ənd /

UK / ənd, ən,ænd /

A1
  • conjunction
  • Used to refer to two or more things
  • Plus; in addition; on top of that
  • Used to introduce an action that follows another

defender

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US / dɪˈfendə(r) /

UK / dɪˈfɛndɚ /

B1
  • noun
  • Fighter who fights against attack

keratin

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US / ˈkerətɪn /

UK / ˈkɛrətɪn /

A1
  • noun
  • Fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair,

major

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US / 'meɪdʒə(r) /

UK / ˈmedʒɚ /

A2
  • adjecitve
  • Main league; esp. referring to American baseball
  • Important, serious, or large in scope, size
  • noun
  • High-ranking officer in the army
  • Main subject you study at university
  • verb
  • To study a particular subject at university

paralyse

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US / ˈpærəlaɪz /

UK / ˈpærəˌlaɪz /

B1
  • verb
  • To be unable to move from loss of muscle function
  • To cause to be powerless and unable to function

trajectory

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US / trə'dʒektərɪ /

UK / trəˈdʒɛktəri /

B2
  • noun
  • The path followed by a flying object

voraciously

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US / vəˈreɪʃəsli /

UK / vəˈreɪʃəsli /

C1
  • adverb
  • In an extreme way, as though very hungry to do it

call

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US / kɔ:l /

UK / kɔl /

A1
  • noun
  • A order or request for action
  • The sound an animal makes, often when in danger
  • A correct prediction, e.g. a decision in a game
  • A short visit to a place or person
  • A decision by a referee or umpire in a game
  • verb
  • To make a request or order for action
  • (Animal) to make sounds to warn of danger
  • To announce the date of an election
  • To make a judgment about something
  • To give someone or something a name
  • To guess in advance the result or outcome
  • To visit a place or person for a short time
  • To phone someone
  • To speak, announce or shout in a loud voice

pollution

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US / pəˈlu:ʃn /

UK / pəˈluʃən /

B1
  • noun
  • Dangerous substances released into an environment

where

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US / hwɛə /

UK / hwɛr, wɛr /

A1
  • conjunction
  • At or in the place which
  • In whatever place
  • pronoun
  • Word you use to ask the location of something

can

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US / kæn /

UK / kən,kæn /

A1
  • noun
  • A metal container for storing food
  • other
  • Able to; have the skill to; have the time to
  • verb
  • To have permission to
  • To be possible to do
  • To preserve food by sealing it in a metal container

coil

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US / kɔɪl /

UK / kɔɪl /

B2
  • noun
  • Wire wound into circles to carry electricity
  • Long material wound into circular rings
  • verb
  • To curl or wind around especially in neat rings
  • To make (rope, hair, etc.) into circles; wind

defenseless

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US / dɪ'fensləs /

UK / dɪ'fensləs /

A1
  • adjecitve
  • Lacking protection or support

scale

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US / skeɪl /

UK / skel /

A2
  • noun
  • Size, level, or amount when compared
  • Small hard plates that cover the body of fish
  • Device that is used to weigh a person or thing
  • Range of numbers from the lowest to the highest
  • Dimensions or size of something
  • verb
  • To change the size of but keep the proportions
  • To climb something large (e.g. a mountain)
  • To remove the scales of a fish

support

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US / səˈpɔ:t /

UK / səˈpɔrt, -ˈport /

A1
  • noun
  • Assistance or advice given to someone
  • Evidence that helps prove something is true
  • A thing to hold up or prevent from falling down
  • verb
  • To give assistance or advice to someone
  • To help prove or show that something is true
  • To hold up or prevent from falling down

wide

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US / waɪd /

UK / waɪd /

A1
  • adjecitve
  • Having a great distance from one side to the other
  • adverb
  • Fully; completely

enter

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US / 'entə(r) /

UK / ˈɛntɚ /

A1
  • verb
  • To start a career or an education
  • To become a competitor in a contest
  • To add or type information in a computer
  • To go into a room, building etc.

outcompete

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US / /

UK / /

A1
  • transitive verb
  • Surpass (someone) in competition.

but

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US / bət /

UK / bʌt,bət /

A1
  • conjunction
  • Used before you say something different, opposite

leathery

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US / ˈleðəri /

UK / ˈlɛðəri /

B1
  • adjecitve
  • Resembling or made to resemble leather; tough

creature

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US / ˈkri:tʃə(r) /

UK / ˈkritʃɚ /

A2
  • noun
  • Animal of any type

attach

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US / ə'tætʃ /

UK / əˈtætʃ /

A2
  • verb
  • To be associated or connected with

fisherman

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US / ˈfiʃəˌmən /

UK / ˈfɪʃəmən /

B2
  • noun
  • Man whose job is catching fish

mexico

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US / 'meksɪkəʊ /

UK / 'meksɪkoʊ /

A1
  • proper noun
  • A country in southwestern North America, with extensive coastlines on the Gulf of Mexico and the Pac

same

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US / seɪm /

UK / sem /

A1
  • adjecitve
  • Being equal in quality and amount
  • Identical; not different
  • Not changing; constant

prevent

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US / prɪ'vent /

UK / prɪˈvɛnt /

A2
  • verb
  • To stop something from happening or existing

barbed

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US / bɑ:bd /

UK / bɑrbd /

B2
  • adjecitve
  • Having a sharp point which curves backwards

exclusively

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US / ɪk'sklu:sɪvlɪ /

UK / ɪkˈsklusɪvlɪ /

B2
  • adverb
  • For the use of only one person or group

food

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US / fu:d /

UK / fud /

A1
  • noun
  • What people and animals eat to live
  • Things taken in by plants to maintain life
  • A particular style or type of cooking, e.g. Asian

not

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US / nɒt /

UK / nɑt /

A1
  • adverb
  • Word indicating the negative
  • (Used to form the negative of verbs)

our

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US / 'aʊə(r) /

UK / aʊr /

A1
  • determiner
  • Belonging to us

reproduce

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US / ˌri:prə'dju:s /

UK / ˌriprəˈdus, -ˈdjus /

B1
  • verb
  • To make a copy of something
  • To have children/young; grow roots/new plants

survive

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US / sə'vaɪv /

UK / sɚˈvaɪv /

A2
  • verb
  • To continue to live despite illness or trouble

quite

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US / kwaɪt /

UK / kwaɪt /

A1
  • adverb
  • Not very; fairly
  • Very; In a complete or total manner

whole

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US / həul /

UK / hol /

A1
  • adjecitve
  • Complete or full; all of
  • Being in a good condition
  • noun
  • Complete amount or sum; total

against

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US / əˈgenst /

UK / əˈɡenst /

A1
  • preposition
  • In physical contact with, as for support; next to
  • In opposition to; disagreeing with

frequent

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US / ˈfri:kwənt /

UK / ˈfrikwənt /

A2
  • adjecitve
  • Happening often
  • verb
  • To go to a place regularly

structure

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US / ˈstrʌk.tʃə /

UK / ˈstrʌk.tʃɚ /

A2
  • noun
  • The way in which the parts of a system or object are arranged or organized, or a system arranged in
  • verb
  • To plan, organize, or arrange the parts of something

unintentionally

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US / ˌʌnɪn'tenʃənəlɪ /

UK / ˌʌnɪn'tenʃənəlɪ /

B1
  • adverb
  • Without intention; accidentally

adaptation

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US / ˌædæpˈteɪʃn /

UK / ˌædæpˈteʃən /

B1
  • noun
  • Music, movie or play, changed to a new form
  • Changing to a new form; thing that is changed

avoid

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US / ə'vɔɪd /

UK / əˈvɔɪd /

A2
  • verb
  • To prevent from happening
  • To stay away from

currently

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US / ˈkʌrəntli /

UK / ˈkʌrənt(ə)li /

A2
  • adverb
  • Happening or being in the present time

weight

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US / weɪt /

UK / wet /

A2
  • noun
  • How heavy something is
  • Metal object to measure how heavy something is
  • Importance, power, and influence person, thing has
  • A source of worry, sadness, or emotional stress

begin

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US / bɪ'ɡɪn /

UK / ˈbeɡɪn /

A1
  • verb
  • To do the first part of an action; to start

kill

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US / kɪl /

UK / kɪl /

A1
  • noun
  • Animal killed by a person or other animal
  • verb
  • To cause someone to experience a lot of pain
  • To end the life of a person or other living thing
  • To be very funny
  • To prevent something from continuing or operating
  • To do something unimportant to pass time quickly

mow

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US / məʊ /

UK / maʊ /

B2
  • verb
  • To cut grass with a blade or mower

prompt

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US / prɒmpt /

UK / prɑmpt /

B1
  • adjecitve
  • Fast; in a quick manner; without delay
  • noun
  • Message on a computer requiring attention
  • Encouragement to ask someone else to talk
  • verb
  • To display a message to requires a user to act
  • To say something to encourage someone else to talk
  • To remind an actor of his or her lines (words)
  • To cause something to occur; be the cause of

predator

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US / 'predətə(r) /

UK / ˈprɛdətɚ, -ˌtɔr /

B1
  • noun
  • An animal that hunts and kills other animals
  • Person preying on the weak to gain advantage

water

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US / 'wɔ:tə(r) /

UK / ˈwɔtɚ, ˈwɑtɚ /

A1
  • noun
  • Clear liquid that forms the seas, rivers and rain
  • Large area such as an ocean or sea
  • verb
  • (Of the eyes) to produce tears
  • (Mouth) to become wet at the thought of nice food
  • To pour liquids onto a plant to keep it alive

animal

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US / ˈænɪml /

UK / ˈænəməl /

A1
  • noun
  • A living creature that is not a plant or person

esophagus

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US / ɪ'sɒfəɡəs /

UK / aɪˈsɑfəɡəs /

A1
  • other
  • The passage between the pharynx and the stomach

gelatinous

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US / dʒəˈlætɪnəs /

UK / dʒəˈlætnəs /

C2
  • adjecitve
  • Thick like gelatine or thick jelly

jelly

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US / ˈdʒeli /

UK / ˈdʒɛli /

B2
  • adjecitve
  • Being soft and without form
  • noun
  • Semisolid food substance, eaten as dessert
  • Sweet food made from fruit and spread on bread

range

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US / reɪndʒ /

UK / rendʒ /

A2
  • noun
  • Cooking stove with multiple burners
  • Given distance from a point; how far plane can fly
  • Large grassy area where cattle wander and feed
  • Group or chain of mountains
  • Set of things with something in common
  • Limits within which something extends or varies
  • A set of products, e.g. so that people can choose
  • verb
  • To cover an area from one point to another
  • To extend to or vary within given limits
  • To put things in a row or in line
  • To wander or explore

fishing

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US / ˈfɪʃɪŋ /

UK / ˈfɪʃɪŋ /

A2
  • noun
  • The act of catching fish
  • verb
  • To go fishing with a net or hook

farm

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US / fɑ:m /

UK / fɑ:rm /

A1
  • noun
  • Land used for growing crops or raising animals
  • verb
  • To use land for raising plants or animals for food

head

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US / hed /

UK / hɛd /

A1
  • noun
  • Counter for the number of cattle
  • Natural mental ability or intelligence
  • Leader or person with the greatest authority
  • Mind; mental ability; mental state
  • Side of a coin with a head on it
  • Top part of your body with eyes and a mouth
  • Starting point of something, e.g. a river
  • verb
  • To hit a ball with your head in a game
  • To be first or at the front or top (e.g. a list)
  • To travel or move toward a particular place; To go in a particular direction
  • To become the leader of something
  • To lead or be responsible for something

control

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US / kən'trəʊl /

UK / kənˈtrol /

A1
  • noun
  • A device designed to operate a machine
  • Participant in experiment that is left untouched
  • Act to dominate or command; make manageable
  • A law limiting the growth or spread of something
  • A place which overseas or manages e.g. a factory
  • verb
  • To direct or influence the behavior of something

light

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US / laɪt /

UK / laɪt /

A1
  • adjecitve
  • Being bright making it easy to see; not dark
  • Being pale and lacking darkness of color
  • Not heavy; weighing only a little
  • adverb
  • Carrying few bags when traveling
  • noun
  • A source of energy that makes a room or area bright
  • Way in which something or someone is understood
  • verb
  • To cause something to burn; put a burning match to
  • To provide a way to see ahead

jellyfish

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US / ˈdʒelifɪʃ /

UK / ˈdʒɛliˌfɪʃ /

C2
  • noun
  • Soft-bodied sea animal, as with stinging tentacles

hunt

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US / hʌnt /

UK / hʌnt /

A2
  • noun
  • A search for animals to kill for food
  • Person's name
  • verb
  • To search for wild animals to kill (for food)
  • To look for very carefully; search for

tentacle

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US / ˈtentəkl /

UK / ˈtɛntəkəl /

B2
  • noun
  • Long thin arm of some animals like an octopus

for

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US / fə(r) /

UK / fɔr,fə /

A1
  • preposition
  • Used to show the purpose, or need of something

frequently

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US / ˈfri:kwəntli /

UK / ˈfrikwəntlɪ /

A2
  • adverb
  • Often; regularly

extend

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US / ɪkˈstend /

UK / ɪkˈstɛnd /

A2
  • verb
  • To offer something (help, friendship) to someone
  • To reach from one point to another
  • To straighten or stretch something out, e.g. leg
  • To make something last longer

grow

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US / ɡrəʊ /

UK / ɡro /

A1
  • verb
  • To get bigger and more mature; make plants do this
  • To improve; to develop better skills over time
  • To develop and become bigger or taller over time

launch

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US / lɔ:ntʃ /

UK / lɔntʃ, lɑntʃ /

A2
  • noun
  • Starting a new project; introducing new product
  • Act of firing rockets into the air
  • verb
  • To start a new project; start selling a product
  • To put a rocket into the air
  • To put a ship into the water for the first time

nuclear

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US / ˈnju:kliə(r) /

UK / ˈnukliɚ, ˈnju- /

A2
  • adjecitve
  • Concerning or involving the center of an atom

well

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US / wel /

UK / wɛl /

A1
  • adjecitve
  • Being in a fortunate, good condition or state
  • Healthy and in good condition
  • adverb
  • In an acceptable, proper, or successful manner
  • In a complete, total, or full manner
  • A great and considerable degree
  • In a successful way, in a good or satisfactory way
  • exclamation
  • Used to begin or continue a particular statement
  • Used to show you want to start saying something
  • Used to express that you are waiting for a reply
  • You say this to change the topic of a conversation
  • Used to indicate you are making a final remark
  • noun
  • Long deep hole in the ground to get water
  • verb
  • To cause your eyes to fill with tears

evolve

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US / ɪ'vɒlv /

UK / ɪˈvɑlv /

B1
  • verb
  • To develop certain features
  • To develop or change slowly over time
  • To slowly change or develop into something better

individual

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US / ˌɪndɪˈvɪdʒuəl /

UK / ˌɪndəˈvɪdʒuəl /

A2
  • adjecitve
  • Made for use by one single person
  • Having a distinct manner different from others
  • noun
  • Single person, looked at separately from others

ocean

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US / 'əʊʃn /

UK / ˈoʃən /

A2
  • noun
  • Large body of salt water; a large sea

much

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US / mʌtʃ /

UK / mʌtʃ /

A1
  • adjecitve
  • Very; to a high level or degree
  • adverb
  • A lot; large amount; a high degree of
  • Nearly; basically
  • On many occasions; often
  • noun
  • A large amount; a great quantity

under

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US / ˈʌndə(r) /

UK / ˈʌndɚ /

A1
  • adjecitve
  • In the same place as another thing, but lower
  • adverb
  • In a lower quantity or price than expected
  • preposition
  • According to the terms of an agreement or law
  • Managed or controlled by the authority of
  • Being of a lesser quality or amount than expected
  • Influenced or affected by something or someone
  • Less or lower in age, amount, size or number

cluster

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US / 'klʌstə(r) /

UK / ˈklʌstɚ /

B1
  • noun
  • A small group of things
  • verb
  • To come together in a group, flock etc.

consume

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US / kən'sju:m /

UK / kənˈsum /

A2
  • verb
  • To eat, drink, buy or use up something
  • To take all your energy; focus the attention

green

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US / gri:n /

UK / ɡrin /

A1
  • adjecitve
  • Color of young leaves
  • Covered with vegetation, e.g. grass
  • Concerned about protecting the environment
  • The color of young leaves
  • Lacking in experience/knowledge due to being young
  • Being not fully grown or ripe, as in fruit
  • noun
  • Large grassy area
  • used as a part of a name of a place (UK)

decade

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US / ˈdekeɪd /

UK / ˈdɛkˌed, dɛˈked /

B1
  • noun
  • Period of 10 years

feed

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US / fi:d /

UK / fid /

A2
  • noun
  • Food given to animals
  • verb
  • To give food, e.g. to animals or a baby
  • To push something through an opening
  • To provide necessary supplies to

claw

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US / klɔ: /

UK / klɔ /

B1
  • noun
  • Long, sharp, and usually curved nail of an animal
  • verb
  • To dig or pull with the nails or fingers

increase

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US / ɪn'kri:s /

UK / ɪnˈkris /

A1
  • noun
  • Fact of increasing; amount something grows by
  • verb
  • To make or become larger in size or amount

reptile

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US / ˈreptaɪl /

UK / ˈrɛptɪl, -ˌtaɪl /

B1
  • noun
  • Animals such as snakes, lizards

could

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US / kəd /

UK / kʊd /

A1
  • other
  • Past form of 'can' to mean have ability
  • Used to ask for something politely, or to offer

know

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US / nəʊ /

UK / noʊ /

A1
  • verb
  • To be familiar with a person or place, thing
  • To feel sure or be convinced about something
  • To discover or be aware of something
  • To be able to distinguish
  • To have knowledge of things

mature

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US / məˈtʃʊə(r) /

UK / məˈtʃʊr /

A2
  • adjecitve
  • Behaving like an adult
  • Being fully developed physically
  • verb
  • (Wine, cheese) To age to improve its taste

often

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US / ˈɔfən /

UK / ˈɔfən,ˈɑfən,ˈɔftən,ˈɑf- /

A1
  • adverb
  • Many times; frequently; on many occasions

swat

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US / swɒt /

UK / swɑt /

C1
  • verb
  • To hit, slap, or smack, e.g. so as to kill a fly

turtle

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US / ˈtɜ:tl /

UK / ˈtɜ:rtl /

B1
  • noun
  • Animal that lives in water and has a hard shell

meter

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US / ˈmi:tə(r) /

UK / ˈmitɚ /

A1
  • noun
  • Unit of length equal to 100 cm or about 39 inches
  • Device for measuring things e.g. gas
  • Device to put money into to rent a parking place
  • Rhythm of a poem
  • verb
  • To measure water, etc. when it has to be paid for

hundred

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US / 'hʌndrəd /

UK / ˈhʌndrɪd /

A1
  • number
  • 100

protect

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US / prə'tekt /

UK / prəˈtɛkt /

A1
  • verb
  • To defend someone or something from harm or danger

world

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US / wɜ:ld /

UK / wɜrld /

A1
  • noun
  • All the humans, events, activities on the earth
  • Political division due to some kind of similarity

whom

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US / hu:m /

UK / hum /

A1
  • pronoun
  • Used in formal writing or speech

gear

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US / ɡɪə(r) /

UK / ɡɪr /

B1
  • noun
  • A speed selector connected to an engine
  • Special clothes you use for a purpose
  • Toothed wheel shifting power from engine to wheels
  • verb
  • To aim at or prepare yourself for something

hand

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US / hænd /

UK / hænd /

A1
  • noun
  • Cards given to a player in a card game
  • Piece of a clock that points to the time
  • Someone who performs physical tasks or work
  • Body part at the end of a person's arm
  • Help for someone performing a particular action
  • Condition of having power or influence
  • Member of the crew of a ship
  • verb
  • To give something to someone personally

next

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US / nekst /

UK / nɛkst /

A1
  • adverb
  • The one that follows another in time or order
  • At a time or place directly after the present one
  • noun
  • The one that follows after
  • adjecitve
  • Immediately after the previous one
  • First occurrence after the present one

spike

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US / spaɪk /

UK / spaɪk /

B2
  • noun
  • The top point in a graph
  • Long, thin metal rod that ends in a point
  • verb
  • To go up to a point on a graph

quickly

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US / ˈkwɪkli /

UK / ˈkwɪklɪ /

A1
  • adverb
  • Without taking a lot of time; fast

almost

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US / 'ɔ:lməʊst /

UK / ˈɔlˌmost, ɔlˈmost /

A1
  • adverb
  • Only a little less than, nearly, not quite

construction

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US / kən'strʌkʃn /

UK / kənˈstrʌkʃən /

A2
  • noun
  • Act of building something; thing that is built
  • Something that is made using different parts
  • The way words are organized in a sentence
  • The way something is made or structured

cover

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US / 'kʌvə(r) /

UK / ˈkʌvɚ /

A1
  • noun
  • A different version of another song
  • Bed sheets; blankets
  • (Police or military) protection from attack
  • Amount of money to be paid in an insurance claim
  • Thing you put over something to close or hide it
  • Front and back part of a book or magazine
  • Shelter built to protect from the natural elements
  • verb
  • To record a different version of another song
  • To include as part of its area
  • To put something over something to hide it
  • To discuss a subject in a talk or meeting
  • To form a layer over something so it is hidden
  • To have sufficient funds to pay for something
  • To include something within an agreed limit
  • To report news on TV, radio or in a newspaper
  • (Police or military) to protect from attack
  • To travel a certain distance in a given time
  • To wrap something with something, such as a cloth

have

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US / həv /

UK / hæv /

A1
  • verb
  • To drink, smoke, eat or use something
  • To experience the effects of something
  • To organize an event, or join in an activity
  • To own, possess, or hold something
  • To cause to happen or produce a particular effect

mechanism

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US / 'mekənɪzəm /

UK / ˈmɛkəˌnɪzəm /

B1
  • noun
  • Part of a machine that performs a certain function
  • System or process for achieving a certain result

without

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US / wɪˈðaʊt /

UK / wɪðˈaʊt, wɪθ- /

A1
  • preposition
  • Not with; not having

unsuspecting

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US / ˌʌnsəˈspektɪŋ /

UK / ˌʌnsəˈspɛktɪŋ /

B1
  • adjecitve
  • Not feeling doubts or suspicions

metric

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US / ˈmetrɪk /

UK / ˈmɛtrɪk /

B1
  • adjecitve
  • Based on the meter as a standard of measurement

with

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US / wɪð /

UK / wɪð, wɪθ /

A1
  • preposition
  • As an employee of a certain company
  • Against something or someone
  • By using something as a means
  • Due to; because of
  • Including
  • Possessing as a feature
  • Related to
  • (Of the manner/attitude by which you do something)
  • Used to express that people or things are together

community

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US / kə'mju:nətɪ /

UK / kəˈmjunɪti /

A2
  • noun
  • Group of people who share a common idea or area

document

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US / 'dɒkjʊmənt /

UK / ˈdɑkjəmənt /

A2
  • noun
  • Official (printed) record that gives information
  • verb
  • To support an opinion with recorded evidence

diameter

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US / daɪˈæmɪtə(r) /

UK / daɪˈæmɪtɚ /

B1
  • noun
  • Distance across the center of an object

harpoon

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US / hɑ:ˈpu:n /

UK / hɑ:rˈpu:n /

C1
  • noun
  • A long spear used for catching big fish
  • verb
  • To launch a long spear into a big fish

low

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US / ləʊ /

UK / lo /

A1
  • adjecitve
  • Having a small quantity, supply, or amount
  • Being unhappy or unpleasant in attitude
  • Not high; being near the ground, or bottom
  • (Of a voice, sound) being soft; quiet
  • noun
  • Situation of not having a lot of something

undermine

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US / ˌʌndəˈmaɪn /

UK / ˌʌndərˈmaɪn /

B2
  • verb
  • To weaken or destroy secretly and usually slowly
  • Introduction to Video Content
  • Over the past two decades, jellyfish have become a nuisance in our oceans, posing a threat to marine life and human activities. In various parts of the world, jellyfish populations have grown exponentially, leading to devastating consequences. For instance, in New Zealand, divers have had to deal with millions of small stinging jellyfish. These tiny creatures, no larger than a grain of pepper, are an annoyance and pose a risk to those in the water. In Sweden, a massive cluster of moon jellyfish caused the shutdown of a nuclear reactor by clogging its essential pipes. This incident not only highlighted the impact of jellyfish on infrastructure but also raised concerns about the safety of nuclear facilities in jellyfish-prone areas. Similarly, in the Sea of Japan, fishermen face the wrath of Nomuras jellyfish, weighing up to 200 kilograms and with bells reaching two meters in diameter. These colossal gelatinous creatures swarm the fishermen, destroying nets and devouring local fish, resulting in economic losses. These examples demonstrate the destructive capabilities of jellyfish and the urgent need for control measures. It is crucial to find a solution to prevent a future where our oceans are overwhelmed with jellyfish. One potential solution lies in the humble sea turtle. Sea turtles, known for their ancient existence, have long been feeding on jellyfish. Although many marine animals consume jellyfish, sea turtles, especially the leatherback species, are the most proficient predators. Leatherback turtles, the largest species of sea turtle, consume jellyfish as their primary food source, consuming over 1,000 metric tons of them throughout their approximately 50-year lifespans. This is astounding considering that jellyfish are mostly composed of water and have very low caloric value. In order to maintain a healthy weight, a 500-kilogram leatherback turtle needs to consume around 400 kilograms of jellyfish daily, equivalent to the weight of a grand piano. Therefore, sea turtles, especially leatherbacks, play a crucial role in keeping jellyfish populations in check. Understanding the dynamics of this predator-prey relationship is essential in developing effective strategies for maintaining a balanced marine ecosystem. By protecting sea turtles and their habitats, we can potentially mitigate the jellyfish crisis and preserve the health of our oceans.
  • Subtitles section
  • Over the past two decades, jellyfish have begun to overwhelm our oceans.
  • In New Zealand, divers swat off millions of stinging jellyfish, each no larger than a grain of pepper.
  • In Sweden, a massive cluster of moon jellyfish shut down one of the world's largest nuclear reactors by clogging the plant's essential pipes.
  • And in the Sea of Japan, thousands of 200-kilogram Nomuras jellyfish, with bells two meters in diameter, swarm fishermen, snapping nets and devouring local fish.
  • Around the world, these animals voraciously consume fish eggs and larvae, routinely undermine marine farming efforts, and outcompete adult fish by consuming the resources they need to survive.
  • If things stay on their current trajectory, we could be headed for a future where the entire ocean is thick with jellyfish.
  • So, is there anything that can keep these gelatinous creatures under control?
  • Enter the humble sea turtle.
  • There are a wide range of marine animals that feed on jellyfish, but sea turtles are among their most ancient predators.
  • And while every known species of sea turtle preys on jellyfish at some point in their lives, none consume quite as many as the leatherback.
  • Leatherbacks are the largest species of sea turtle, and they eat jellyfish almost exclusively, devouring well over 1,000 metric tons of them over their roughly 50-year lifespans.
  • This is particularly remarkable because jellyfish are 95% water and very low in calories.
  • So to maintain a healthy weight, the average 500-kilogram leatherback needs to eat roughly 400 kilograms of jellyfish every day.
  • That's roughly the same weight as a grand piano.
  • And while some sea turtle species have been documented selectively eating their prey's protein-rich gonads, leatherbacks eat jellyfish whole, mowing down huge swaths of unsuspecting jellies.
  • Normally, jellyfish aren't quite this defenseless.
  • Most species have tentacles covered in cells called cnidocytes, which contain venomous harpoons coiled and ready to launch.
  • These barbed structures, known as nematocysts, are released on contact.
  • Jellyfish frequently use this sting to paralyze and kill their food, and it can also irritate the skin of would-be intruders.
  • But it's completely useless against sea turtles.
  • Most of these reptiles have thick scales covered in keratin, the same material that makes up nails and claws.
  • This leathery armor protects their skin while they hunt, and any captured prey that tries to escape is impaled on the keratinized spikes lining the leatherback's esophagus.
  • For most sea turtles, these adaptations make individual jellyfish easy prey.
  • However, a jelly population's true defense mechanism is in how quickly they can reproduce.
  • Almost all jellyfish species have evolved to reproduce both sexually and asexually, allowing them to increase their numbers with or without a partner.
  • In tropical environments, jellyfish reproduce constantly throughout the year.
  • But in more temperate climates, species often reproduce all at once in a massive bloom, where jellies multiply at alarming rates.
  • And humanity is making these blooms much more frequent.
  • Fertilizer runoff from farms introduces chemicals that simultaneously kill other fish and prompt blooms.
  • High water temperatures caused by climate change speed up jellyfish reproduction and extend the reproductive season.
  • Meanwhile, both marine construction and pollution dramatically increase the surface area for jellyfish polyps to attach, grow, and mature.
  • All these issues require a wide range of policy-based solutions.
  • But one major way to prevent jellyfish populations from getting out of hand is to protect their natural predators— many of whom are currently under threat.
  • Small-scale fisheries that are essential to communities in Mexico and Peru often use gill nets, which unintentionally capture and kill hundreds of sea turtles each year.
  • In the eastern Pacific, these practices could drive leatherbacks to extinction in the next 60 years.
  • Fortunately, some researchers have already developed inexpensive tools to minimize these risks.
  • Attaching green LED lights to gill nets has proven useful for allowing sea turtles, dolphins, and even seabirds to avoid fishing gear.
  • Solutions like this should allow small-scale fishers to support their communities while minimizing their impact on our leathery ocean defenders.
  • With this one