Sloths are the slowest mammal on the planet, but they are actually a lot more extreme than it seems. They even have a whole ecosystem on their backs.

Conventional wisdom has it that sloths are simple, lazy creatures that do very little other than sleep all day. Even the very name “sloth” in most languages translates to some version of ...

Being slow means sloths can't outrun predators. Instead, sloths outsmart predators by relying on camouflage, such as algae that grows on their fur. Their main predators rely on sight and movement.

Take a peek at the world's slowest mammal, so sedentary that algae grows on its furry coat. Read on to learn about life in the slow lane.

Sloths have survived with their take-it-slow approach for millions of years. On International Sloth Day, perhaps we should consider the lessons the sloths have to offer the always-in-a-rush human ...

Discover how Megatherium americanum, often seen as a giant sloth, may have been an ancient predator instead of a mere herbivore.

Birds, sloths, monkeys, and other arboreal species dwell in the canopy of the forest where they are sheltered from raptors and ground predators.

Leaving the trees burns energy and makes sloths easy prey for predators, but the benefits of a richer diet appear to be worth the perils.

A vulnerable sloth is seen facing off against a large dog in an image that highlights a heartbreaking conservation issue. American photographer Suzi Eszterhas entered it into the 58th Wildlife ...

After studying fossils from an ancient ground sloth found in 2004, a study published in Biology Letters has concluded the tooth marks covering the bones were from the animal being preyed on by a 4 ...