Frogs: The Thin Green Line

A film about the importance of heirloom seeds to the agriculture of the world, focusing on seed keepers and activists from around the world.

We take our features, our noses, eyes, and ears for granted, but they are pretty weird things until you look at the nose of a tapir or desman, the eyes of a cuttlefish or chameleon, or the ears of a seal or elephant. There is an almost endless variety of designs, and some are downright odd!

In the face of his own threatening illness, the greatest protector of jaguars is battling time and adversity to save these endangered cats. Venture deep into the wilds of Brazil, Belize, and Panama with biologist Alan Rabinowitz as he pursues these elusive predators—and fights to protect even more jaguar habitat than he already has. Narrated by actress Glenn Close.

Trek into the hidden battlefields of northern Botswana where lions and spotted hyenas clash in overlapping territories. With never-before-seen footage, much of it filmed at night, you'll uncover an intense and vicious blood feud that has been waged for millennia. Follow the Southern Clan, led by a powerful hyena matriarch whose firstborn female cub kills her sister at birth to assure her succession as leader of the clan. Lurk in the shadows as a lioness from the Central Pride gives birth to three cubs and then encounters a deadly Egyptian cobra. You'll be stunned by breathtaking chase scenes as the hyena matriarch is brutally killed by a male lion, throwing the clan into chaos. Discover nature's savage conflicts in this ancient rivalry.

National Geographic embarks on a 250-mile adventure through unspoiled territory along the coast of British Columbia called the Great Bear Rain Forest. It is here that bear-hunting wolves take to the sea, grizzlies clash in titanic battles, and wild salmon are the pulsing lifeblood of an entire ecosystem. As this precious habitat faces an uncertain future, threatened by chainsaws and fish farms, a team of dedicated scientists is racing to prove that it must be protected. Forming a wilderness detective squad, these experts are searching for the rare white spirit bear and collecting clues that will decipher the secret life of the forest's elusive inhabitants.

American Ocelot tells the story of one of the most endangered and beautiful wild cats in the United States — a species so elusive that high-quality images and video have never been captured until now. With fewer than 100 individuals remaining in the US, the ocelot is critically endangered, genetically isolated, and only exists in Texas.

Werner Herzog's documentary film about the "Grizzly Man" Timothy Treadwell and what the thirteen summers in a National Park in Alaska were like in one man's attempt to protect the grizzly bears. The film is full of unique images and a look into the spirit of a man who sacrificed himself for nature.

Migration is one of the great phenomena of the natural world. When it’s time to move some take to the skies or the oceans, but the migrants we know best are found in the awe-inspiring herds running across our planet.

Ever since there’s only one male northern white rhino remaining on earth, armed bodyguards protect him, tourists are standing in line to make a selfie with him, journalists rush to Kenya to tell his story and scientists are determined to find ways to reproduce his species. What is so attractive about the threat of extinction? How does this reflect on us?

From polar bears in the arctic tundra to black bears in the Northern Rockies, you'll see some of the most spectacular footage ever shot of these enterprising omnivores. Catch salmon with a group of hungry grizzlies on the McNeil River in Alaska. Crawl inside a den with a mother black bear and her cubs. Learn about the challenges facing each of these species as their habitat diminishes.