Animals on the island of Tasmania in southern Australia.

Discover how Australia's wildlife fares at the end of the wet season.

In the tropics, the reefs are a deadly city of predator and prey.

Cheetahs, leopards, jaguars, and lions battle to hold their place at the top of the food chain.

Kangaroos, cheetahs, and meerkats struggle for survival in the heat.

As winter comes to the Rocky Mountains, the big animals battle for mating rights.

On the Nile, hippos, crocodiles, lions, wolves, mole rats, and lungfish struggle to survive.

A day in the life of Alaska's animals, including bears, whales, salmon, orca, and walruses.

A 24-hour battle for survival on the ancient isles of the East Indies.

The reef is a magnet for life, where predator and prey are crammed together.

A 24-hour battle for survival on the tallest mountain range on Earth.