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Why Can’t Some Birds Fly?

104,709 views

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Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

98%
  • 4:33 / 4:37

Speech Rate:

  • 173 wpm - Fast

Category:

  • Science & Technology

Tags :

Intro:

Special thanks to The Free Dictionary for providing us with the information used in this web page

Video Vocabulary

populations

/ˌpäpyəˈlāSH(ə)n/

populations
noun other

all inhabitants of place. Numbers of people who live in countries areas etc..

penguins

/ˈpeNGɡwin/

penguins
noun other

large flightless seabird of southern hemisphere, with black upper parts and white underparts and wings developed into flippers for swimming under water. Black and white sea birds that cannot fly.

specifically

/spəˈsifək(ə)lē/

specifically
adverb

in exact and clear way.

ostriches

/ˈästriCH/

ostriches
noun other

flightless swift-running African bird with long neck. Very large bird that cannot fly, with a long neck.

evolution

/ˌevəˈlo͞oSH(ə)n/

evolution
noun

Theory that living things change over time.

decreased
decreased
verb

To reduce the size, amount or number of something.

develop

/dəˈveləp/

develop
verb

To make a photograph from film.

possible

/ˈpäsəb(ə)l/

possible
adjective noun

Being able or appropriate for a task or purpose. candidate for job.

flightless

/ˈflītlis/

flightless
adjective

Incapable of flying.

influenced

/ˈinflo͝oəns/

influenced
verb

To affect or change something indirectly.

ratites

/ˈratīt/

ratites
noun

any of mostly large, flightless birds with ratite breastbone, i. e. ostrich, rhea, emu, cassowary, and kiwi, together with extinct moa and elephant bird.

scientists

/ˈsīəntəst/

scientists
noun other

person who is studying or has expert knowledge of one or more of natural or physical sciences. People who are trained in a science.

thought

/THôt/

thought
noun verb

Idea or memory. To have an idea, opinion or belief about something.

includes

/inˈklo͞od/

includes
verb

comprise or contain as part of whole.

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