This troop of Langur Monkeys show empathetic behavior as they mourn what they think is a dead baby Langur. The seemingly lifeless juvenile is actually a robotic spy monkey, designed to film the primates.

With acute senses the arctic fox can hear lemmings under the snow. To catch one he uses a special pouncing technique known as ‘moussing’. But moussing isn’t always easy –especially for a beginner!

Reindeer traditionally pull sleighs and have a popular reputation for red, glowing noses. But behind this folklore there is some surprising truth – an in-genius adaptation which helps them survive the extremes.

The American pronghorn is the second fastest land mammal on the planet - reaching speeds of fifty miles an hour. But it’s pace long baffled scientists. It’s speculated that an arms race between the american cheetah and the pronghorn may be the reason for the antelope’s remarkable speed.

With their aquatic skills – and powerful bite – jaguars are able to prey on the crocodile-like caiman. An extraordinary act of such predation was filmed by a tourist in Brazil’s Pantanal.

Pallas’s cats have learned to cope with mountain life. They often live in rock dens, which keep them well protected. They hunt insects, small rodents, and birds by using rocks for cover. But out in the open these 9 pound cats are vulnerable to attack from eagles and wolves, so they move with extreme caution.

The clouded leopard is the most ancient type of cat alive today and its genetic blue print is shared by all cats. Every feline species alive today shares the clouded leopard’s razor sharp canines, heightened senses and their extreme agility.

Wildlife vets in Uganda load up a specially built vehicle with a herd of Rothschild's giraffes. Their destination is the other side of the Nile River, where they'll be protected from the effects of oil drilling.

Men and women in charge of caring for Uganda’s wildlife have gathered from across the entire country to capture a rare Rothschild's giraffe. Lead by Dr. Julian Fennessy, their goal is to transport the animal across the Nile River, to an area safe from oil drilling.

Weighing up to two tons, the giraffe is a colossal animal and unlike any other. Dr. Julian Fennessy walks us through the giraffe's unique anatomy by examining the bones of a enormous male specimen.