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zakruti.com » Knowledge, science, education » TED-Ed
Why can't some birds fly? - Gillian Gibb

Why can't some birds fly? - Gillian Gibb

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Rating: 4.0; Vote: 1
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. Lesson by Gillian Gibb, directed by Anton Bogaty
Date: 2020-08-22

Comments and reviews: 3


Its some that cant fly and change according to the environment but what about those who can fly? Like from the group of ostrich some didnt have the energy and some did so some are surviving on the land and some should be in air?
Nor chicken nor penguin
I think they were not made to fly

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Some humans arent able to do basic things like walking, hearing, talking, getting heard by other people while screaming at my basement, and seeing. They are called disabled so humans and birds have alot in common.
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It says the common ancestor of all birds could fly. If you go back a bit further, the common ancestor of all birds could not fly. This ancestor was a dinosaur.
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