Big cat populations are shrinking fast, but now we have the means to view them in more detail than ever.

Join filmmaker Casey Anderson as he embeds in the Alaskan wilderness to follow the largest terrestrial carnivores in the world.

Nature is red in tooth and claw, animals face daily battles to protect themselves and secure the resources they need.

Ask what the most dangerous animal is and most will say a lion or tiger, and true, they have the power to kill, but far more people are killed by hippos or buffalo, even domestic cows, pigs, and especially dogs.

The most aggressive of ocean predators, the bull shark, is notorious for leaving the safety of the deep blue ocean, venturing far up the murky rivers of Africa's coast in search of prey. But lurking in these shadowy places is Africa's deadliest killer - the Nile crocodile.

“Lion whisperer” Kevin Richardson embarks on an unforgettable journey—from the deserts of Namibia to Victoria Falls—taking us closer than we ever dreamed possible to the magnificent lions, cheetahs and leopards of southern Africa.

Lions may be known as the kings of the jungle, but it was saber-tooth cats that ruled over the Americas. New fossil evidence is shinning a light on the violent lives of these mysterious species.

A lost prehistoric world of Antarctica is brought back to life through state-of-the art CGI.

It’s the dry season near the Serengeti and hungry lions threaten the livelihood of cattle-herder Rugari and his family. He could kill the predatory lions and protect his cattle, but his daughter seeks another solution. Filmed on location in Tanzania—where the worlds of lions and humans collide.

By examining countless Megalodon teeth from around the world, scientists have concluded that "meg" was able to achieve its gargantuan proportions by starting its carnivorous diet early -- in the womb.

Hidden in the jungles of Thailand lies an ancient kingdom—a last refuge for the rarest wild cats on earth, including the clouded leopard, the Indian fishing cat and the Indo-Chinese tiger. Within this tangled forest, these apex predators search for prey, pursue mates and protect their young.

Nepal is known for its Bengal tigers, but only 300 remain in the wild. Tracker Casey Anderson is determined to walk in their footsteps.

Every animal on the planet is armed with a weapon of some kind.

Dan O’Neill is on a mission to find, film, and measure the biggest living crocodiles. Dan joins Dennis, an indigenous saltwater crocodile guide in Australia’s Northern Territory, hoping to track down a legendary giant male lurking somewhere along the Mary River.

Follow the life and legacy of Cecil: one of the world's most famous lions. The ultimate big cat king, Cecil was a warrior, a father and a loyal brother, but his untimely death at the hands of an illegal hunt in Zimbabwe spelled the end of his extraordinary reign.

The ultimate icons of polar wilderness, able to withstand the harshest environments and remain a top predator; the lives of polar bears are nothing short of remarkable!