The North Atlantic right whale is on the brink of extinction. But a handful of specialists are determined to help save it as they discover new secrets about the lives of these giants of the sea.

David Attenborough presents seven of the most remarkable animal songs found in nature and explores the significance of these songs in the lives of their species.

Morgan Gardner and McKenzie Mungai of the Maui Ocean Center Marine Institute talk about the unique biology of sea turtles.

In its second year, Changing Planet revisits six of our planet's most vulnerable ecosystems and catches up with the truly inspiring people introduced in the first season: scientists and local experts fighting to safeguard their communities and wildlife, and charting the progress of their game-changing environmental projects.

Embark to Niagara Falls and witness its stunning beauty and a wide variety of wildlife—mammals, birds, and reptiles— that call it home. Through the eyes of passionate scientists, uncover a complex world forged by stone and powered by water.

As extreme weather in the U.S. impacts more people – with longer heat waves, more intense rainstorms, megafires, and droughts – discover how Americans are fighting back by marshaling ancient wisdom and innovating new solutions.

Young animals face new challenges as winter envelopes the Rocky Mountains, and spring means the end of childhood. A grizzly mom prepares her cubs for hibernation, a mountain lion raises her kittens and a bison calf must learn to survive the snow.

American horses are icons. Mustang. Appaloosa. Morgan. Quarter Horse. Follow the history of the uniquely American horse breeds that helped shape our nation and meet the people who are continuing in the long tradition of caring for them.

Recent discoveries in archaeology are exploding the myth of the Amazon as a primeval wilderness, revealing traces of ancient civilizations that flourished for centuries, with populations numbering in the millions.

NATURE: DOGS IN THE WILD is a three-part miniseries that travels the globe to uncover the secrets of the most successful carnivores on the planet: wild dogs. From jackals, foxes, and wolves to dingoes and the Japanese raccoon dog, canids have conquered every continent except Antarctica.