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Bill Nye the Science Guy - Season 3 Episode 18 Birds

Trailer
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.

First Air Date: Sep 10, 1993

Last Air date: Jun 20, 1998

Season: 5 Season

Episode: 100 Episode

Runtime: 26 minutes

IMDb: 7.21/10 by 76.00 users

Popularity: 27.934

Language: English