New species discovered! Read the latest research news on newly discovered frogs, cave crickets, monkeys and more.

Sloths, the world's slowest mammal, have been around for 64 million years. Sharyn Alfonsi traveled to Costa Rica to learn more about how they've survived.

Captive wild animal encounters are hugely popular, thanks partly to social media. But our investigation shows many creatures lead dismal lives. For $10, tourists can pose with this tiger at Phuket ...

Bats are mammals belonging to the order Chiroptera, a name of Greek origin meaning "hand-wing," which accurately describes the animal's most unusual anatomical feature. The order is divided into two ...

But after the animals were returned to a refuge in central Oman in 1982, almost all were wiped out by poachers. “We had the animals, and we put them back, and the world wasn’t ready,” says Pimm.