Hippopotamus

Yellow penguin spotted in Antarctica—here's why it's so rare

The world’s oldest known wild bird just turned 70—why she’s so special

2:50

Tiger vs. Monkeys

It takes patience and skill to get the jump on a troop of monkeys. But when it comes to stealth, this tiger has earned its stripes. Footage from the show "World's Deadliest".

A lemur died from tuberculosis. Here’s why that matters.

Monkeys still forced to pick coconuts in Thailand despite controversy

Selfie-taking tourists risk giving wild gorillas COVID-19, other diseases

2:46

Humpback whales make a ‘heat run’

After a 4500 km migration across the open ocean, these humpback whales are ready for one of nature's wildest mating rituals. Footage taken from the show Wonders of the Ocean.

4:00

The golden eagle

A golden eagle must search vast distances to find food during winter. Footage taken from the show Hostile Planet.

4:09

First steps for a barnacle goose chick

For three barnacle goose chicks, their first day in the world will be their greatest challenge. Footage taken from the show Hostile Planet.

2:56

Penguin Love Story

Penguins meet. They fall in love. He goes out to sea, and she fears he'll never return. Footage from the show "Symphony For Our World".

2:49

Hippo vs. Lions

A male hippo is forced to find a new bathing pool – but he has to fight some formidable enemies to gain access to the water. Footage taken from the show Africa’s Deadliest.

More than 130 years after its discovery, this moth was finally photographed alive

The world’s biggest owl is endangered—but it’s not too late to save it

Lasers, cannons, effigies: The surprising science of shooing vultures away

Echolocation is nature’s built-in sonar. Here’s how it works.

How the world’s largest rhino population dropped by 70 percent—in a decade

Pets are helping us cope during the pandemic—but that may be stressing them out

New chameleon species may be world’s smallest reptile

Human-hippo conflicts are exploding in a pristine patch of Kenya