Nature Collection

The Mozambique Gorongosa National Park spans 1,500 sq. mi. of lush floodplains. But 15 years of civil war has almost completely wiped out many of the park's species. Discover what's being done to bring this African oasis back to its former glory.

National Geographic chornicles one of the most ambitious conservation projects in American history--creating a thriving three million acre wildlife reserve to restore "America's Serengeti." Narrated by Tom Selleck.

They're giants-stretching more than 300 ft. above the ground, with hidden gardens and mysterious predators within their canopy. Climber Steve Sillett investigates Redwood's monster crowns, while explorer Mike Fay charts their range.

Although it encompasses over half of the world's species, we know more about the surface of Mars than the bottom of the ocean. But what If we could remove the water? Drain the Ocean explores one of Earth's last great frontiers as never before.

At the bottom of South America, where the Atlantic and Pacific Oceans collide, is Patagonia, one of the last great wild Edens on Earth. Journey to this breathtaking subantarctic region and its crown jewel-Tierra del Fuego.

National Geographic investigates the execution-style murder of six mountain gorillas in Virunga National Park. Their search reveals corruption and how Virunga has become one of the most dangerous places on earth.

Infuriated and desperate after witnessing poachers kill the last black Rhino in Botswana, award-winning filmakers, the Jouberts, enlisted the help of the Botswana Defense Force and began a massive relocation effort.

The Serengeti in northern Tanzania has one of the biggest lion populations in Africa. But there is a looming dynasty ruling the plains to which hundreds of lions trace their roots. Experience the Serengeti through their eyes.

Follow a rebel named Black Wolf who breaks from his pack and survives to be one of the oldest wolves in Yellowstone. National Geographic cameras capture the action when he finally achieves alpha male status in his own pack.

More than three times the height of Niagara Falls, much of Vietnam's Mountain River Cave has remained untouched by humans. With exclusive footage, National Geographic reveals astounding evidence that this could be the largest cave in the world.