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 ...

A Facebook post features several pictures of large bones arranged in a way that resembles a human skeleton. People are observing the bones in some of the photos. "The remains of GIANTS were discovered ...

Sloths weren’t always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge — up to 4 tons — and when startled, they brandished immense claws. For a long time, scientists believed ...

The fur of Costa Rican sloths appears to harbor antibiotic-producing bacteria that scientists hope may hold a solution to the growing problem of "superbugs" resistant to humanity's dwindling arsenal ...

Imagine a world where colossal creatures roamed the land, coexisting with early humans. This was the reality in the Americas, where giant sloths and mastodons thrived alongside our ancestors for ...

Athena, a beloved sloth, who seemed lively and not slothful, has died at age 7 at the Smithsonian’s National Zoo in ...

Sloths weren’t always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge — up to 4 tons (3.6 metric tons) — and when startled, they brandished immense claws. For a long time, ...

Sloths weren't always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge — up to 4 tons (3.6 metric tons) — and when startled, they brandished immense claws.Video above: ...

Ponsani studies the fossils of giant sloths that were found in an archaeological site in central Brazil called Santalina. The bones date from *** time before people supposedly arrived, but some seem ...