BBC Natural World - Animals - The Inside Story (2002) Part 3 Extreme Lives

How animals do the remarkable things they do. Animals - The Inside Story breaks new ground in the journey it takes into animal anatomy revealing the hidden mechanisms that drive amazing animal behaviours. In this fascinating three-part documentary, viewers can look inside animals to see what makes them tick. Fusing exciting computer animation, thermal imaging and compelling science, Animals: The Inside Story puts creatures under the microscope to expose the hidden mechanisms that drive their actions.

Part 3: Extreme Lives

Extreme Lives explores the limits of animal endurance. A polar bear uses its thick fur coat to turn light into heat and survive the Arctic cold. Hibernation is one way to endure winter but the rare Vancouver Island Marmot is on a knife edge between life and death. Wood frogs enter a state of suspended animation, freezing 65% of their bodies to stay alive. The camel survives extremes of desert heat with amazing blood cells and a nose designed to conserve every drop of moisture.