Wildlife: Mug Shots
  • Por George W. Frame, Ph. D.
  • Duración: 0:02:43
  • Narrador: Highlights for Children
  • Editor: Highlights

Wildlife biologists need special ways to recognize individual animals that they are studying.

How the Weaverbird Built His Nest
  • Por George W. Frame, Ph. D.
  • Duración: 0:04:20
  • Narrador: Highlights for Children
  • Editor: Highlights

How does the male weaverbird make such a perfect nest? By building it over and over again until he gets it right.