Esau’s journey spans borders that elephants cannot see — but must obey. His fate reflects the growing challenges facing elephants across Africa.

In Amboseli, Esau’s moment has arrived. As other males circle, he relies not on force, but skill and restraint -- while younger elephants watch and learn what it takes to mate.

Outside of battle and breeding, male elephants form powerful bonds. Together, they move as one — supporting each other and raising a young orphan as family.

Experts are calling it the largest animal rescue operation in history. When Hurricane Katrina struck New Orleans, Louisiana, the city’s human residents weren’t the only ones trying to cope with ...

Marine ecologist Alannah Vellacott grew up in a Bahamian subsistence fishing community, where wrestling sharks before sunrise was part of daily life. Now she’s dedicated to conserving these majestic ...

Sir David Attenborough explores the scientific research behind the legend of a massive ape, known as “Bigfoot,” the “Yeti,” or the “Abominable Snowman.” Drawing on fossil evidence, he unveils the ...

In 1893, a bounty hunter named Ernest Thompson Seton journeyed to the untamed canyons of New Mexico on a mission to kill a dangerous outlaw. Feared by ranchers throughout the region, the outlaw wasn’t ...

When Samuel Ramsey was a child, he was afraid of bugs. But a trip to the library with his mother changed everything and led him to become a bee entomologist. He grew up gay in a non-affirming ...

In a remote part of the Amazon rainforest in Peru, there’s a river with water so hot, it actually boils. In fact, it’s so extreme and so remote that for a long time, people thought the river was a ...

Sun bears are the smallest bear species, measuring 4 to 5 feet long on their hind legs and weighing 60 to 150 pounds. This is only about half the size of an American black bear. Sun bears are named ...

The axolotl is a type of salamander. It has a long tail, flat head, and four lizard-like limbs, which it uses to move around the lake floor. But unlike other salamanders, axolotls are neotenic, ...

Taking a walk through the Amazon rainforest? Might want to keep an eye out for what look and sound like cannonballs, crashing down from above at more than 50 miles an hour. If you are unlucky enough ...