Life on Earth - Invasion of the Land

Seizoen: 1 - Aflevering: 6 / 6 - Eerst uitgezonden: 20 februari 1979 - Episode ID: 160257

Some 350 million years ago, evolution reached one of its most crucial stages when fish crawled from water onto the land and became amphibians. Today, newts, salamanders, toads and frogs still survive in great quantities, and there is even one species of frog where the male gives birth from its mouth!