A mother mountain lion risks her life to feed her six kittens. This rare footage captures her incredible fight against the odds with a large elk in the snowy wilderness of Montana.

The team films something not seen before: an hours-long teaching session between adults and their young. Killer whales are one of only a handful of animals that actively teach their young, and it’s ...

The skin of a cuttlefish shows its emotional state, changing colors depending on meeting a potential mate or rival. But what happens when a male cuttlefish interacts with Spy Cuttlefish? - [Narrator] ...

Mountain lions risk everything to hunt elk, prey more than twice their size. After ten years of monitoring mountain lions in Montana, this crew has captured this behavior on camera only four times.

Researchers from the University of Washington conduct a long-term experiment to see if crows can pass down information from one generation to the next.

See the wolverine at play, sprinting across snow-covered terrain, and uncovering animals buried in the ...

While nearly 100 known rhinoceros species have existed throughout the eons, there are currently five species of living rhinos. Two rhino species can be found in Africa and three species can be found ...

This orphaned baby walrus, dubbed Little Miss Walrus, was found alone on a remote Alaskan beach, just one week old and covered in scratches. She’s now safe at the Alaska SeaLife Center, the only place ...

When the gray wolf was eradicated from Yellowstone National Park in the 1920s, more was lost than just the noble and fascinating predator. The park’s entire ecosystem changed. Now, nearly a dozen ...

One of the smallest frogs in the world, the Macaya breast-spot frog (Eleutherodactylus thorectes) is only found on the Formon and Macaya peaks in southwestern Haiti. The species is expected to decline ...

NATURE presents the compelling story of a remarkable denizen of the West in Cloud: Wild Stallion of the Rockies. America’s wild horses lead an exhilarating but perilous existence. The climate can be ...

Frogs have been living on this planet for more than 250 million years, and over the centuries, evolved into some of the most wondrous and diverse creatures on earth. Today, however, all their ...