
Race of Life
See how their cold-blooded metabolisms have let reptiles cover the globe for hundreds of millions of years.

See how their cold-blooded metabolisms have let reptiles cover the globe for hundreds of millions of years.

Even the sky isn't safe. See how predator and prey react to each other in the evolutionary, aerial arms race.

Nothing beats speed when it comes to survival in the wild. Learn how some animals are literally born to run.

African savannah regions support a much greater diversity of wildlife than temperate grasslands.

The world's longest chain of mountains, the Andes run the length of western South America and control climate.

In central South America is a vast, wild expanse: the world's largest wetland. But this is no ordinary swamp.

Venezuela is famous for its lost worlds linked by the waters of a mighty river: the grand, 1,700-mile Orinoco.

Patagonia is a place of extremes: ice fields, snow-capped mountains, windswept deserts, and violent oceans.

The Amazon is Earth's richest ecosystem. Uncover what makes the Amazon such a powerhouse of robust evolution.

See the exclusive behavior of the creatures that live in the heart of the Pacific Ocean.

The world's longest chain of mountains, the Andes run the length of western South America and control climate.

In central South America is a vast, wild expanse: the world's largest wetland. But this is no ordinary swamp.

Venezuela is famous for its lost worlds linked by the waters of a mighty river: the grand, 1,700-mile Orinoco.

Patagonia is a place of extremes: ice fields, snow-capped mountains, windswept deserts, and violent oceans.

The Amazon is Earth's richest ecosystem. Uncover what makes the Amazon such a powerhouse of robust evolution.

See the exclusive behavior of the creatures that live in the heart of the Pacific Ocean.

This is the story of three sun bears from Indonesia and their perilous journey from captivity into the wild.

Who is the cutest in the animal kingdom? Is it the clown fish, one part of a dazzling array of marine life?

Who is more dangerous between the sinister cold-blooded crocodile, the venomous snake, and the kingly lion?

The explosive sprinting cheetah and the bearded wildebeest battle for the title of the fastest animal.