Follow Nanu the polar bear cub and Seela the walrus pup through exciting and often dangerous struggles for survival, with only their natural instincts and mothers' guidance to help them face the challenges of a world that is melting around them.

A story of three animal families on a journey across our planet - polar bears, elephants, and humpback whales. It captures rare footage of nature's wildest and most elusive animals.

An astonishing journey revealing the awesome power of the natural world. Over the course of one single day, we track the sun from the highest mountains to the remotest islands to exotic jungles. Breakthroughs in filmmaking technology bring you up close with a cast of unforgettable characters. Told with humor, intimacy and a jaw-dropping sense of cinematic splendor.

Looks back at Jane Goodall's career as a primatologist, animal rights advocate, and environmental activist. Comprised of present-day interview segments with Goodall and archival footage of her work studying chimpanzees at Tanzania's Gombe National Park shot by Hugo van Lawick in the 1960s for National Geographic.

Showcases a year in the life of a bear family as two impressionable young cubs are taught life's most important lessons. Set against a majestic Alaskan backdrop teeming with life, their journey begins as winter comes to an end and the bears emerge from hibernation to face the bitter cold. The world outside is exciting-but risky-as the cubs' playful descent down the mountain carries with it a looming threat of avalanches.

Volume 1 introduces us to the mammals and to insect-eaters and herbivores. Volume 2 discusses mammals with special adaptations for finding food, and looks at carnivores and omnivores. Volume 3 looks at sea mammals, and tree-dwellers. Volume 4 examines the lives of monkeys and humans.

Join an epic adventure into the untamed grandeur of Alaska and embrace the spirit of the wild.

"Sharks eat humans. True or false? Think you know the answer? All is revealed in this sensational 4-DVD collection. Explore the habitats, behaviors, and physical design of one of the world's most savage and intricate creatures with expert John Stoneman"--Topics-ent.com.

Documentary on a joint project by Russian and American scientists aiming to save the biggest cat on earth, the elusive Siberian tiger.

The beautiful and elusive big cats, snow leopards and lions, are examined.