TED-Ed: Gillian Gibb: Why can't some birds fly?

The video explores the world of flightless birds, highlighting their habitats, evolution, and survival strategies. It explains how some birds have lost the ability to fly due to energy conservation and lack of predators, while others have adapted to survive alongside predators. The video also discusses the threats posed by human-introduced predators and the adaptations that help some flightless birds thrive.

What factors contribute to the evolution of flightlessness in birds?

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In what ways do flightless birds repurpose their wings?

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