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

Sloths appear to have life figured out, and once the details are revealed, being envious makes sense. These tree-dwelling mammals have survived for millions of years by doing things their own way, and ...

It’s not considered polite to talk about it, but we all do it. Some of us are in and out so quickly that nobody would even know we were gone. Others quietly get up from the sofa, tuck a newspaper ...

Among the greatest mysteries of the tropical rainforest are the pooping habits of sloths. Really. Those furry, slow-moving tree dwellers almost never descend from the safety of the tree tops—except ...

When you picture the jungle, your mind might jump to roaring tigers, monkeys swinging wildly from tree to tree, or bright parrots flitting between branches. But high above, in the dense green canopy, ...

For most animals, ears are necessary survival tools, allowing them to communicate with others and listen for predators. Chickens have small openings on the sides of their heads which are often covered ...

While sleep is a crucial component of survival for all living organisms, some animals take the concept of sleep to an extreme level. Ranging from tree-dwelling animals to nocturnal predators, the long ...