
Battle of the Alphas
Bighorn rams rattle the mountaintops; Brown bears battle before winter; Wild stallions rumble.

Bighorn rams rattle the mountaintops; Brown bears battle before winter; Wild stallions rumble.

See the mental gifts that put some killers head and shoulders above the pack.

With dueling dragons and giant beetles, Southeast Asia boasts a wide range of wildlife warriors.

Fighting dirty with a guanaco; head-butting an iguana; a hermit crab evicts a tenant from its shell.

Examine the razor-sharp claws, teeth, and senses of these wild killing machines.

The mighty North provides the setting for bison, bald eagles and polar bears.

As the competition begins, lean, mean and newly awakened bears brawl over spring resources.

Massive elephant seals go nose to nose to win the title of beach master.

A male brown hare throws punches at his beloved; admiring a sandhill crane dance battle.

Steering clear of alphas, whose horns, claws and other protective gear keep them ready for battle.

Tangle with crocs and hippos as they battle for dominion of Africa’s rivers.

Unlock survival strategies in Earth's most arid climates.

Admire arctic animals' secret superpowers of survival.

Roatan is home to the world's second-largest barrier reef, with black corals, sharks, and barracuda.

From the paso del cedral coral reef to the world's longest subterranean underwater cave system.

Discovering what connects sea cows to mermaids; a shellfish buffet with bears.

Travel to places where migratory whales feed, breed and raise their young despite imminent danger.

Flapping around with Banksi the fruit bat and his human surrogate mom; eyeing a mischievous emu.

Plunging into the depths of the Pacific to meet the toothy and transparent residents of the abyss.

Exploring India, in a land of exotic animals; blackbucks in the open plains.