They are giants—stretching more than 300 feet above the ground, with hidden gardens and mysterious predators thriving within their canopy. National Geographic reveals the unexplored environment of the California redwoods in an epic, year-long exploration. Obsessive redwood climber Steve Sillett of Humboldt State University explores their massive crowns, discovering new record-breaking trees, while escaping falling branches and crashing trees in the process. Down below, National Geographic Explorer-in-Residence Mike Fay charts the redwood range to size up the past and future of these primeval trees threatened in 21st century California.

Against the backdrop of the sixth mass extinction, an all-woman team of biologists set out to save b...

An underwater exploration beneath kelp forests in the Pacific Ocean off the coast of Southern Califo...

Mountain Gorilla takes us to a remote range of volcanic mountains in Africa, described by those who ...

Lost Worlds looks at untouched aspects of nature in parts of the world where humans rarely tread. Fr...

A documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwi...

Every year, thousands of Antarctica's emperor penguins make an astonishing journey to breed their yo...

Set in the mountains of northeast Italy, this film may be considered an observational documentary ab...

Ocean Voyagers explores the familiar themes of motherhood and parenting in a world as unfamiliar as ...

Venom expert Dr. Bryan Fry embarks on a dangerous island journey to uncover the deadly secrets of vi...

Carefully picked scenes of nature and civilization are viewed at high speed using time-lapse cinemat...

Global warming in context. What the climate of the past tells us about the climate of the future.

Juxtaposed to the hustle and bustle of city life on the diminutive Caribbean island of Dominica, Jer...

By land, by air, and by sea, viewers can now experience the struggle that millions of creatures endu...

On Zambia's Liuwa Plain two star-crossed spotted hyena cubs are born to warring rival clans: Twaambo...

Three foxes - Hunter, Scar, and Red - live on a Serengeti-like landscape on a rewilded part of the w...
Hidden deep within the Pony Pasture Rapids Park of Richmond, Virginia there lives a creature whose a...

Did Cartier dream of making a country from this land of a million birds? In his records of his explo...

National Geographic gets 10 experts to pick the most significant natural disasters ever, adding eyew...