Wildlife series exploring the greatest mountain ranges of the world. This episode looks at the Rockies in North America, home to cougars, wolves and grizzly bears. Show more

A look at the highest mountain range on earth, the Himalayas, including resident snow leopards and bizarre-looking monkeys, and the Everest marathon. Show more

Wildlife series. The Andes is the longest mountain range in the world and home to astonishing hidden worlds, extraordinary animals and remarkable people. Show more