How Spawning Squid Offer a Buffet for Predators

You might expect the ancestor of modern-day whales to be a marine dweller of considerable size. But pakicetus is as far removed from that image as you could possibly imagine

Why This Whale Ancestor Is an Evolutionary Surprise (2:54)

In 1946, on a remote Pacific Island, the military began a program known as ‘Operation Crossroads.’ Its aim was to capture, on film, the actual moment of an atomic bomb detonation

Capturing a Photograph of an Atomic Bomb Blast (2:54)

The success of the Apollo 8 mission hinged on a unique and terrifying maneuver: slowing the spacecraft enough to enter lunar orbit. Even the slightest mistake would have meant certain doom

The Riskiest Maneuver in the History of the Space Program (3:51)

Today, there is only one species of crocodile on Madagascar: the famous Nile Crocodile. But local stories about a horned-crocodile that died out hundreds of years ago have spurred a search for its fossils

Scientists Find Skull of an Extinct Crocodile Species (3:14)

NASA is preparing to send a chimpanzee, Ham, into space to test the effects of space on a living creature. He’s received a training regiment to prepare him for the mission ahead

NASA's First Chimp in Space (2:11)

Yunnan snub-nosed monkeys have several adaptations to deal with the cold: from upturned noses that protect them from frostbite to special blood vessels that help them increase their oxygen uptake

How Snub-Nosed Monkeys Adapted to Extreme Cold (2:01)

Coral is a slow-grower—only about six inches a year. But with global warming and pollution, damaged coral doesn’t always get the recovery time it needs

Coral Grows at About the Same Rate as Human Hair (1:55)

Not many people know that hippos can be loud. In fact, in the Luangwa Valley, the noise they make can reach up to 115 decibels—the equivalent of a rock concert

The Noise Made by Wild Hippos Can Be Deafening (2:09)

Elephants have the longest gestation period of all mammals: 22 months. In addition, elephant mothers have remarkably strong bonds with their calves that endure for life.

Why Elephant Moms Always Stay Close to Their Calves (1:48)