In Canada's vast plains, the biggest buffalo and wolves in the world do battle. Here, one wolf pack struggle to maintain the family business: bringing down buffalo. "Cold Warriors" airs Wednesday, February 13 at 8 PM (check local listings).

Breathtaking footage of a wolf pack going after a herd of bison in Canada's Wood Buffalo National Park. "Cold Warriors: Wolves and Buffalo" premieres February 13, 2013 at 8/7c (check local listings).

Sir David Attenborough on the anti-whaling campaigns of the mid-late 20th century that changed our consciousness, and ushered in an era of commitment to save these incredible marine mammals from extinction.

Before David Attenborough left Zoologist Dian Fossey's camp in the Virunga National Park, he promised to help her in her efforts to save the mountain gorilla populations. He joined with other conservationists to create the Mountain Gorilla Fund. "Attenborough's Life Stories: Our Fragile Planet" premieres February 6, 2013 at 8/7c (check local listings).

Hear Attenborough’s reflections on the dramatic impact human beings have had on the natural world. 2/6/2013

Hear Attenborough’s reflections on the dramatic impact human beings have had on the natural world. "Attenborough's Life Stories: Our Fragile Planet" airs Wednesday, February 6 at 8 PM (check local listings).

Sir David Attenborough accompanies an imprinted family of Greylag geese in flight. "Attenborough's Life Stories: Understanding the Natural World" premieres January 30 at 8/7c (check local listings).

Share in Attenborough’s memories of the scientists and the breakthroughs that helped shape his career. "Attenborough's Life Stories: Understanding the Natural World" airs Wednesday, January 30 at 8 PM (check local listings).

Kestrels are known as wind hoverers because of the birds' ability to hang motionless in the air. Sir David Attenborough shows us, using slow motion photography, details of their flying technique that we can't see with the naked eye. "Attenborough's Life Stories: Life on Camera " premieres Wednesday, January 23 at 8/7c.

For 60 years, one man devoted his life to understanding and documenting the natural world. The first hour of this 3-part series looks at the developments in wildlife filmmaking that led to remarkable revelations about our planet and the creatures that inhabit it. "Attenborough's Life Stories: Life on Camera" premieres Wednesday, January 23 at 8/7c (check local listings).

Revisit key places and events in Sir David Attenborough’s wildlife filmmaking career. "Attenborough's Life Stories: Life on Camera" airs Wednesday, January 23 at 8 PM (check local listings).

A young wood duckling jumps from its tree nest to reach its mother. It's just the second day of her life. She can't fly. But she can see the land far below, and hear her mother's calls. Maybe courage comes from necessity. Maybe it comes in knowing from birth exactly what to do. "An Original DUCKumentary" premieres November 14 at 8/7c (check local listings).

Masters of the water and air, they have conquered the globe. From deft dabblers to great divers, these are one of the Animal Kingdom's ultimate athletes. Take a fascinating look at one of our most familiar birds. An Original DUCKumentary airs November 27 at 9/8c (check local listings).

A look at all that's entailed in getting those duck feathers just right. "An Original DUCKumentary" premieres Wednesday, November 14, 2012 at 8/7c (check local listings).

Even in the depths of the Arctic winter, Common Goldeneyes stay a toasty 105 degrees inside their dense feathers. Their challenge is to prevent all that warmth from escaping into the icy water through their naked legs and bid, webbed feet. "An Original DUCKumentary" premieres Wednesday, November 14, 2012 at 8/7c (check local listings).

A goat and a horse are inseparable for 16 years. A dog befriends a wild deer. It's time to challenge the notion that only humans form lasting friendships. Animal Odd Couples premieres November 7 at 8/7c (check local listings).

Dr. Marc Bekoff, former Professor of Ecology and Evolutionary Biology at the University of Colorado featured in Animal Odd Couples, talks about the scientific study of animal emotions, animal friendships, and the elements of the brain that allow for such bonds to form.

Primatologist and evolutionary biologist Dr. Lauren Brent discusses her research on the social behavior of nonhuman primates and the benefits of friendship. "Animal Odd Couples" premieres Wednesday, November 7, 2012 at 8/7c (check local listings).

A snowy owl pair has made a nest out on the tundra. The much larger female is definitely sitting on eggs, and before long, owlets begin to hatch. "Magic of the Snowy Owl" premieres Wednesday, October 24 at 8/7c (check local listings).

In the dim glow of the Arctic dawn, the true majesty of the snowy owl can be seen in its frozen, white kingdom. For adult snowies, the lengthening daylight means the chance to breed is drawing closer. "Magic of the Snowy Owls" premieres Wednesday, October 24 at 8/7c (check local listings).