Nature

Big Birds Can't Fly

Season 34 Episode 3 | 53m 9s | Video has closed captioning.

It may seem strange that among the more than 10,000 bird species in the world today is a group that literally cannot fly or sing, and whose wings are more fluff than feather. These are the ratites: the ostrich, emu, rhea, kiwi and cassowary. How and why these birds abandoned flight has puzzled scientists since Darwin’s time, but DNA and dedicated research are helping to solve these mysteries.

Aired: 10/07/15

Expired: 11/07/15

Rating: NR

Problems Playing Video? | Closed Captioning

Major support for NATURE is provided by the Arnhold Foundation, The Fairweather Foundation, Kate W. Cassidy Foundation, Sue and Edgar Wachenheim III, Kathy Chiao and Ken Hao, Charles Rosenblum, Filomen …

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