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

When you begin to think of the cutest animals in nature, a sloth may not immediately come to mind, but that’s probably because you’ve never seen a baby sloth. One look at the baby sloth in this ...

The world's first and only "Slotharium" is about to open in Florida! Soon animal lovers can travel to Orlando to visit Sloth World. This 7,500-square-foot space will house more than 40 sloths across ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Everybody loves sloths, and whenever we talk ...

Heather Ewart does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Ancient sloths lived in trees, on mountains, in deserts, boreal forests and open savannahs. These differences in habitat are primarily what drove the wide difference in size between sloth species.

Sloths always seem to have a relaxed smile on their lips, making them appear friendly and cute. The natural habitat of these leisurely tree dwellers is the tropical rainforests of Central and South ...