The Katmai National Park on the Alaska Peninsula is the kingdom of the brown bear. With a population of over 2,000 bears the rivers get crowded during salmon spawning season. See how the brown bears thrive in this gorgeous northern landscape cradled by volcanoes and glaciers.

Following a large family of gorillas over nine years, this film captures many aspects of unique behavior as well as revealing touching stories of compassion among this gorilla family in the tropical rainforests of Gabon.

Arguably in the top three on everyone's list of "cutest animals", the koala lives a sleep-filled life. This film follows the koala community of Otway Forest, south of Melbourne, Australia. How do koalas behave? -- and when are they awake?

Shot in the savannah of western Uganda, this program features unique footage of hippo behavior never before caught on tape. A 4-ton hippo leaping as gracefully as a dolphin must be seen to be believed! Watch life unfold in the area known as "Hippo Paradise", home to more than 5,000 hippos.

This program paints a portrait of the lives of the bison through the changing seasons of the North American prairie. Battling back from near extinction, these awesome animals roam a landscape stretching 3,000 kilometers from north to south.

Inhabiting forests in the dry regions of southern Madagascar, the distinctively marked ring tailed lemurs live in female dominated groups. Life among the group can be quite contentious at times, with females engaging in scuffles with their young on their backs.