Challenges of Life
In nature, living long enough to breed is a monumental struggle. Many animals and plants go to extremes to give themselves a chance.
Reptiles and Amphibians
Reptiles and amphibians look like hang-overs from the past. But they overcome their shortcomings through amazing innovation.
Hunters and Hunted
Mammals' ability to learn new tricks is the key to survival in the knife-edge world of hunters and hunted.
Creatures of the Deep
Marine invertebrates are some of the most bizarre and beautiful animals on the planet, and thrive in the toughest parts of the oceans.
