TV-G
S1 • E2 Feb 11, 2008 50m8.67.0
Among chorusing frogs in Panama, Sir David Attenborough asks how amphibians first managed to invade the land. The Australian lungfish, an ancient relative of the amphibians that can breathe air, and the giant Japanese salamander, one of the largest amphibians on Earth, give vital clues about their first tentative steps.
