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Ancient Predator Had a Killer Jaw | National Geographic

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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

white

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US / waɪt /

UK / hwaɪt, waɪt /

A1
  • adjecitve
  • Belonging to a race of people with light skin
  • Of the color of fresh snow and milk
  • noun
  • Person's name
  • Lightest color; The color of fresh snow.

four

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US / fɔ:(r) /

UK / fɔr, for /

A1
  • number
  • 4

million

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US / ˈmɪljən /

UK / ˈmɪljən /

A1
  • number
  • 1,000,000

inside

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US / ˌɪn'saɪd /

UK / ɪnˈsaɪd, ˈɪnˌsaɪd /

A2
  • adjecitve
  • Being in something
  • Being in a building
  • adverb
  • Into a house; indoors
  • noun
  • Inner part or surface of something

safe

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US / seɪf /

UK / sef /

A2
  • noun
  • Metal box with a lock to keep valuable things in
  • adjecitve
  • Highly likely
  • Being out of danger

always

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US / 'ɔ:lweɪz /

UK / ˈɔlwez,-wɪz,-wiz /

A1
  • adverb
  • For a very long time
  • At all times; in every situation
  • For ever

play

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US / pleɪ /

UK / pleɪ /

A1
  • noun
  • Loose, free movement between two objects
  • Single action in a sports game
  • Performance in which people act in a theater
  • verb
  • To act as a character in a movie, or on stage
  • To perform music on an instrument
  • To use a device, e.g. a video game
  • To do something for enjoyment and fun
  • To do or perform a game or sport

swirl

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US / swɜ:l /

UK / swɜrl /

B1
  • verb
  • To make a twisting shape, mark, or pattern

into

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US / 'ɪntə /

UK / ˈɪntu /

A1
  • preposition
  • Moving or going inside something
  • In the same direction as; in the direction of
  • So as to become; taking the state of

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

than

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US / ðən /

UK / ðən /

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

less

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US / les /

UK / lɛs /

A1
  • adjecitve
  • Smaller in amount or degree
  • adverb
  • To a smaller degree
  • noun
  • A smaller amount
  • preposition
  • With the subtraction of

body

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US / ˈbɒd.i /

UK / ˈbɑdi /

A1
  • noun
  • An object distinct from other objects
  • A group of people involved in an activity together
  • Main part of something
  • A person's physical self

ones

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US / wʌnz /

UK / wʌnz /

A1
  • number
  • Number 1, a single person or thing

big

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US / bɪɡ /

UK / bɪɡ /

A1
  • adjecitve
  • Popular
  • Serious
  • Large

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

deep

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US / di:p /

UK / dip /

A1
  • adjecitve
  • Complex and important
  • Extreme or intense
  • Going far down from the surface
  • Low in pitch, as a sound
  • adverb
  • At a certain distance beneath the surface

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)

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

modern

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US / ˈmɔdən /

UK / ˈmɑdən /

A1
  • adjecitve
  • Of the present time; up to date; contemporary

for

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US / fə(r) /

UK / fɔr,fə /

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

time

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US / taɪm /

UK / taɪm /

A1
  • noun
  • Speed at which music is played; tempo
  • Point as shown on a clock, e.g. 3 p.m
  • Number of hours, minutes needed to do something
  • Occasion when something happens
  • Period or occasion that something occurred
  • Period in history or the past
  • Something measured in minutes, hours, days, etc.
  • How long an event takes; duration
  • verb
  • To check speed at which music is performed
  • To choose a specific moment to do something
  • To measure how long an event takes, e.g. a race
  • To schedule something to occur at a specific moment

such

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US / sʌtʃ /

UK / sʌtʃ /

A1
  • determiner
  • Being similar to
  • (Thing) as previously stated or referred to
  • adverb
  • (Used to emphasize the quality of an adjective)

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

few

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US / fju: /

UK / fju /

A1
  • pronoun
  • Not many, a small number

inch

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US / ɪntʃ /

UK / ɪntʃ /

A1
  • noun
  • 1/12th of a foot (2.54 centimeters)
  • Very small distance
  • verb
  • To move or cause to move a small bit at a time

ocean

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US / 'əʊʃn /

UK / ˈoʃən /

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

strong

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US / strɒŋ /

UK / strɔŋ /

A1
  • adjecitve
  • (Of tea or beer) dark or thick
  • Having big muscles; physically powerful

force

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US / fɔ:s /

UK / fɔrs, fors /

A1
  • noun
  • Group of persons trained for military action; army
  • Pressure; attraction
  • The use of physical strength/violence to persuade
  • verb
  • To use physical strength or violence to persuade

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

bizarre

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US / bɪˈzɑ:(r) /

UK / bɪˈzɑr /

B2
  • adjecitve
  • Odd or strange

twice

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US / twaɪs /

UK / twaɪs /

A1
  • adverb
  • Two times

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

rotation

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US / rəʊˈteɪʃn /

UK / roʊˈteɪʃn /

B2
  • noun
  • Regular change of the crops grown in a field
  • Group who take turns performing a certain task
  • Regularly changing the time when people work
  • Movement in a circle around a central point

find

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US / faɪnd /

UK / faɪnd /

A1
  • noun
  • Object discovered by chance
  • Things that have been discovered from searching
  • verb
  • To become aware of something that is happening
  • To discover or meet by chance
  • To decide if someone is guilty of a crime, or not
  • To learn through study, research, or effort
  • To discover something by looking for it

great

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US / ɡreɪt /

UK / ɡret /

A1
  • adjecitve
  • Very large in size
  • Very important
  • Very good; fantastic; wonderful
  • adverb
  • Very good; better than before
  • noun
  • Successful and well-admired person

tooth

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US / tu:θ /

UK / tuθ /

A1
  • noun
  • A sharp points on the edge of a machine or tool
  • Hard white things in the mouth, used to bite

frightening

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US / ˈfraɪtnɪŋ /

UK / ˈfraɪtnɪŋ /

A2
  • adjecitve
  • Being scary
  • verb
  • To make someone afraid or nervous

whirl

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US / wɜ:l /

UK / hwɜrl /

B2
  • verb
  • To turn rapidly in circles

from

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US / frəm /

UK / frʌm, frɑm,frəm /

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

extinct

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US / ɪkˈstɪŋkt /

UK / ɪkˈstɪŋkt /

B1
  • adjecitve
  • (Of animal, etc.) having died out; with none left
  • (E.g. of volcano) not active

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

mutant

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US / ˈmju:tənt /

UK / ˈmjutn:t /

B2
  • noun
  • Organism derived from a change in genes

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

gila

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US / ˈhiːlə /

UK / ˈhiːlə /

A1
  • noun
  • River in western New Mexico and Arizona

notch

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US / nɒtʃ /

UK / nɑtʃ /

B2
  • noun
  • Certain level (slightly higher or lower than)
  • Narrow pass between two mountains or hills
  • Cut in the shape of the letter V
  • verb
  • To cut a small V-shaped mark into something

beware

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US / bɪˈweə(r) /

UK / bɪˈwer /

B1
  • verb
  • To be careful, used in warning someone

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

not

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US / nɒt /

UK / nɑt /

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

shark

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US / ʃɑ:k /

UK / ʃɑ:rk /

B2
  • noun
  • Person who lends money at unfair rates of interest
  • Large and dangerous fish with sharp teeth

size

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US / saɪz /

UK / saɪz /

A1
  • noun
  • How big or small a thing is
  • Standard measurements for clothing, shoes
  • verb
  • To make something to fit a particular measurement
  • To organize or group from small to large

fossil

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US / 'fɒsl /

UK / ˈfɑsəl /

B1
  • noun
  • Plant or animal that became rock after many years

creature

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US / ˈkri:tʃə(r) /

UK / ˈkritʃɚ /

A2
  • noun
  • Animal of any type

wise

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US / waɪz /

UK / waɪz /

A2
  • adjecitve
  • Knowledgeable about life; having good judgment

but

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US / bət /

UK / bʌt,bət /

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

spiral

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US / 'spaɪrəl /

UK / ˈspaɪrəl /

B2
  • adjecitve
  • Curved in a continuous circle
  • noun
  • A continuous curve round a central point
  • verb
  • To move in a continuous curve round a point

mystify

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US / ˈmɪstɪfaɪ /

UK / ˈmɪstəˌfaɪ /

B2
  • verb
  • To cause to be in a state of confusion or mystery

angle

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US / ˈæŋgl /

UK / ˈæŋɡəl /

B1
  • noun
  • Place where two lines or surfaces meet

bite

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US / baɪt /

UK / baɪt /

A2
  • noun
  • Amount of food taken into your mouth at one time
  • Wound left from being bitten
  • verb
  • (E.g. of fish) to take bait and be caught
  • To close your teeth onto something, usually to eat

century

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US / 'sentʃərɪ /

UK / ˈsɛntʃəri /

A1
  • noun
  • Period of 100 years

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

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

terrify

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US / ˈterɪfaɪ /

UK / ˈtɛrəˌfaɪ /

B1
  • verb
  • To scare or greatly frighten

scientist

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US / ˈsaɪəntɪst /

UK / ˈsaɪəntɪst /

A2
  • noun
  • Person who is trained in a science

upper

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US / ˈʌpə(r) /

UK / ˈʌpɚ /

B1
  • adjecitve
  • Located above others of the same kind
  • Being the northern part of a region
  • Being closer to the source of a river
  • noun
  • Drug that improves mood or increases energy
  • Something happy or encouraging
  • Top part of a shoe, other than the flat bottom

mouth

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US / maʊθ /

UK / maʊθ /

A1
  • noun
  • Hole in the face used for eating and talking
  • Opening of a container such as a bottle
  • Area where a river enters a large body of water
  • verb
  • To say words without speaking

horror

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US / ˈhɒrə(r) /

UK / ˈhɔrɚ, ˈhɑr- /

B1
  • noun
  • Feeling of great shock or fear; thing causing it

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

lived

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US / 'lɪvd /

UK / 'lɪvd /

A1
  • verb
  • To be alive
  • To experience a particular type of life
  • To make your home in a house or town

old

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US / əʊld /

UK / old /

A1
  • adjecitve
  • Having existed for a long time, not young or new
  • Age of a person since birth

work

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US / wɜ:k /

UK / wɚk /

A1
  • adjecitve
  • Activity completed in order to make money
  • noun
  • The product of some artistic or literary endeavor
  • Everything created by an author, artist, musician
  • Activity you do in order to make money
  • Place of employment
  • Final product or result of a some labor or effort
  • verb
  • To bring into a specific state of success
  • To be functioning properly, e.g. a car
  • To do your job in your company or workplace
  • To make an effort to do something
  • To operate a machine or device

fin

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US / fɪn /

UK / fɪn /

B2
  • noun
  • Flat, thin body parts of a fish that help it swim
  • Flat, thin object that sticks out from something

they

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US / ðeɪ /

UK / ðe /

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

movie

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US / ˈmu:vi /

UK / ˈmuvi /

A1
  • noun
  • Motion picture; film

its

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US / ɪts /

UK / ɪts /

A1
  • adjecitve
  • Referring to or belonging to ‘it’
  • determiner
  • Of something; belonging or related to something
  • other
  • Possessive form of “it”

killer

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US / ˈkɪlə(r) /

UK / ˈkɪlɚ /

A1
  • adjecitve
  • Being appealing or funny
  • noun
  • Something that is a challenge to deal with
  • Person, thing or animal that kills

top

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US / tɒp /

UK / tɑp /

A1
  • adjecitve
  • Being good or great; excellent
  • Being the most in degree or quality
  • noun
  • Item of clothing covering shoulders to waist, hips
  • A cover or lid
  • Part (e.g. road) that is the furthest away
  • Highest or upper part or point of something
  • Best or highest status or position
  • Flat upper surface or edge of an object
  • Child's toy that spins on its point
  • Upper section or leaves of fruits and vegetables
  • Winning in a sport or contest
  • verb
  • To be higher or larger than a specific value
  • To arrive at the highest point of something
  • To put a cover or layer or over something
  • To kill; murder
  • To hold the highest position on a list
  • To be more important, successful or better than
  • To beat someone or win at a game

look

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US / lʊk /

UK / lʊk /

A1
  • noun
  • Person's beauty or physical attractiveness
  • Particular style of dress, clothes, or appearance
  • The way someone, something appears to be
  • Act of searching for or examining something
  • verb
  • To appear to be; seem

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

teenage

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US / ˈti:neɪdʒ /

UK / ˈtinˌedʒ /

A2
  • adjecitve
  • Being of the age 13 through 19

ago

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US / əˈgəʊ /

UK / əˈgoʊ /

A1
  • adverb
  • At a specified length of time in the past
  • Subtitles section
  • CURSE OF THE BUZZSAW KILLER In swirling oceans 275 million years ago, Lived one of the top predators of its time.
  • THE GILA KAPRIAN It Was like a mutant creature from a horror movie.
  • It looked like a shark with a terrifying buzzsaw in its jaw.
  • Its bite was as strong as a modern crocodile's.
  • How could such a bizarre jaw work?
  • The angle of its mouth was bigger than a great white shark.
  • Teeth pushed the prey deep inside.
  • The jagged spiral was forced into a notch in the upper jaw.
  • Prey was sliced in two.
  • No less frightening was its size.
  • Twice as long as a great white, it had fewer fins and a narrower body.
  • Don't get close to these blades.
  • They're four inches long and angled backwards.
  • New teeth pushed older ones deep into the whirling rotations in the jaw.
  • Teen monsters had two rotations.
  • Adults had four circles of flesh-ripping chompers.
  • More than 150 of the fossils have been found.
  • The odd shape mystified scientists for over a century.
  • The Gila Kaprian went extinct long ago.
  • But beware the curse of the buzzsaw killer.
  • It's always wise to play it safe in the water.