In nature, many animals and plants go to extremes to give themselves a chance to live long enough to breed.

The pebble toad turns into a rubber ball to roll and bounce from its enemies. Extreme slow-motion shows how a Jesus Christ lizard runs on water, and how a chameleon fires an extendible tongue at its prey with unfailing accuracy.

Discover how mammals stand out from the crowd, with their fat, fur, warm blood, and the extraordinary care they lavish on their young.

Never-before-seen footage of fish in action illustrates how they are able to dominate the planet's waters.

From the equator to the Poles, this episode looks at how birds' feathers help them to survive in almost any environment.

A look at insects' survival techniques, from beetles who spray boiling chemicals at their enemies, to marching columns of grass cutter ants.