Bill Nye the Science Guy Season 3 Episode 18 Birds 1995
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Scientists believe that birds evolved from reptiles. Birds have backbones, and they lay eggs, but they’ve developed a unique feature that sets them apart from all other animals – feathers. Feathers are made of the same stuff human fingernails and hair are made from – a protein called keratin. Feathers, combined with lightweight bones, powerful wings and strong hearts let birds fly.
- Released: 1995-10-13
- Runtime: 26 minutes
- Genre: Comedy, Documentary, Kids
- Stars: Bill Nye, Rachel Glenn, Jennifer Lin, Amy Broder, Ethan Ferkiss
- Director: Erren Gottlieb, Elizabeth Brock, Bill Nye, Michael Gross, Erren Gottlieb
