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Talk5 min

Why can't some birds fly?

Gillian Gibb · TED

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About

Though the common ancestor of all modern birds could fly, many different bird species have independently lost their flight. Flight can have incredible benefits, especially for escaping predators, hunting and traveling long distances. But it also has high costs: consuming huge amounts of energy and limiting body size and weight. Gillian Gibb explores what makes birds give up the power of flight. [TED-Ed Animation by Anton Bogaty].

The talk

  1. Why can't some birds fly? 5 min · TED's player

Credits and licence

Institution
TED
Department
TED-Ed
Speaker
Gillian Gibb
Year
2018
Level
For everyone
Language
English
Subjects
Biology
Source
TED
Licence
CC BY-NC-ND 4.0, as TED states it. Non-commercial use only, and no changed versions. TED's terms
Attribution
TED Talks are licensed by TED under Creative Commons BY-NC-ND 4.0 International and are shown here in TED's own player, as TED's usage policy asks.
Who can watch
TED gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed