Wild Australia

The Great Barrier Reef is so big it can be seen from space.

Across the Pacific, long chains of atolls support life on the remnants of ancient volcanoes.

Hundreds of millions of years of volcanic activity, isolation and powerful currents have shaped Antarctica and its surrounding islands into varied and fascinating terrains.

Every animal in Antarctica answers the call of the seasons, and the continent itself is vastly different in Summer and Winter.

Antarctica is an old time center of the ancient southern supercontinent, Gondwana; traces of these connections remain throughout the southern hemisphere today in plants and marine species with similarities that have long ago changed and adapted to the surrounding environment.

When it's time to haul ashore for breeding, mating and raising young, marine mammals return from the Antarctic Peninsula to island beaches in the middle of the South Atlantic oceans.