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
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1. Planets & Moons 1995-01-14
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2. Pressure 1995-01-21
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4. Rocks & Soil 1995-02-03
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6. Evolution 1995-02-17
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7. Water Cycle 1995-03-24
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8. Friction 1995-03-31
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10. Climates 1995-04-14
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12. Ocean Life 1995-04-28
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13. Mammals 1995-09-08
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14. Spinning Things 1995-09-15
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16. Human Transportation 1995-09-29
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17. Wetlands 1995-10-06
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19. Populations 1995-10-20
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20. Animal Locomotion 1995-10-27
