Filmmaker Bertie Gregory's new documentary special captures the extreme challenges facing the world's fastest land animal.

From an elusive jaguar to an industrious beaver, photographers captured iconic animal moments around the world.

From giant stick bugs to rarely seen sea creatures, these animal videos fascinated us—and led to new scientific discoveries.

A natural experiment in a national park in Patagonia shows how the return of a large predator can reshape an ecosystem.

Why is this rhino hanging upside down? David Chancellor found out while photographing a wildlife veterinarian receiving a ...

Cosmonauts Oleg Artemyev and Sergey Prokopyev successfully installed the first ICARUS experiment antenna on the outside hull of the International Space Station during a nearly eight-hour space walk in ...

From sharks to bats to lions, these researchers are showing their local communities the importance of these often misunderstood species to their ecosytems. Lemon sharks (pictured in the Bahamas) are ...

Foraging for wild honey is a tricky business. Bee nests are hard to find, and their inhabitants swarm and sting to defend themselves. But in a rare and millennia-old collaboration, honey hunters in ...

Tigers and monkeys and tapirs, oh my! Joel Sartore's latest book, "National Geographic Photo Ark: Babies," captures the animal kingdom's most curious youngsters. Sumatran tigersPanthera tigris ...

Dim the lights, put on some slow jams... get up in the tree? National Geographic's Crittercam technology just revealed a mating ritual never before seen in any bear species. An Andean bear named Ruru ...