Every couple of years, a new collection of animals find their way into the mainstream. It used to be lions, tigers, and even ...

Sloths, the world's slowest mammals, have evolved over 64 million years into a species that thrives throughout Central America and northern South America, but climate change and human sprawl could be ...

Long before today’s tree-dwelling sloths, a 4-ton giant roamed South America — and it may have stood and fought like a bear.

Wildlife photographer Lucy Cooke's new book "Life in the Sloth Lane" is packed with stunning shots of sloths Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE since 2013, ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Central and South America’s sloth populations may face a dire ...

Famously sluggish sloths spend most of their lives upside down. But unlike humans, these creatures don't have trouble breathing in that inverted position, because their internal organs are fixed in ...

Two-toed sloth Jemma will be heading to Marwell Zoo in Hampshire to help boost the species.

A 400,000-year-old giant sloth femur was discovered in Argentina, preserving rare muscle marks that reveal how these Ice Age ...