Bill Nye: The Science Guy
Bill Nye: The Science Guy
Birds (3x18)
Data di messa in onda: Ott 13, 1995
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.
- Iniziato: Set 1993
- Episodi: 100
- Followers: 36
- Terminata
- PBS
- Sconosciuto