JustWatch
S01 Episode 1
Challenges of Life
In nature, many animals and plants go to extremes to give themselves a chance to live long enough to breed.
58 mins · Mon, 12 Oct 2009
S01 Episode 2
Reptiles and Amphibians
From icy wastes to arid deserts, discover how reptiles and amphibians survive in some of the harshest environments on the planet.
58 mins · Mon, 19 Oct 2009
S01 Episode 3
Mammals
Discover how mammals stand out from the crowd, with their fat, fur, warm blood, and the extraordinary care they lavish on their young.
59 mins · Mon, 26 Oct 2009
