Larisa R. G. DeSantis received funding from the National Science Foundation, the Guggenheim Foundation, and Vanderbilt University. DeSantis is also a research associate at the La Brea Tar Pits and ...

Many thousands of years ago, the Sarasota-Manatee area was home to a diverse mix of now-extinct mammals—most notably, saber-tooth cats, mastodons and giant ground sloths called Megatherium, which ...

Massive Megatherium sloths once stood as large as Asian elephants, ripping foliage off treetops with prehensile tongues like today's giraffes. "They looked like grizzly bears but five times larger," ...

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.

A cooling, drying climate turned sloths into giants – before humans potentially drove the huge animals to extinction. Today’s sloths are small, famously sluggish herbivores that move through the ...

New research painted a more accurate picture of the megafauna that spread widely around the Americas before they went extinct. By Jeanne Timmons Ground sloths emerged in South America tens of million ...

Most of us are familiar with sloths, the bear-like animals that hang from trees, live life in the slow lane, take a month to digest a meal and poop just once a week. Their closest living relatives are ...

The largest sloth of all time was the size of an elephant. Known to paleontologists as Eremotherium, the shaggy giant shuffled across the woodlands of the ancient Americas between 60,000 and five ...

We're often advised to "kick back," "chill out," or "slow down" when summer begins, as well as other reminders to savor the year's most golden stretch in an easygoing, unstressed sort of way. Stream ...

An unusual bear cub is in Cleveland, just waiting for you to find her a name. The Cleveland Metroparks Zoo announced Tuesday that a sloth bear cub was born back in December. The unnamed female cub ...