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

A restoration of Megatherium from H.N. Hutchinson’s Extinct Monsters. For over a century and a half dinosaurs have been the unofficial symbols and ambassadors of paleontology, but this was not always ...

I have a soft spot for giant ground sloths. I think part of that affection comes from this old, stop-motion video on fossil mammals I watched countless times as a kid. Sure, Platybelodon, Glyptodon, ...

Discover how Megatherium americanum, often seen as a giant sloth, may have been an ancient predator instead of a mere herbivore. The lethargic two-foot-long tree-hugging sloths of the South and ...

In some respects, Washington, D.C., in the 1850s was an unlikely place to usher in a golden age of American natural history. Philadelphia and Boston had long been the traditional centers of American ...

The Megatherium was a genus of giant sloth found across South America until the end of the Pliocene epoch; at 4 tonnes, it was one of the largest ground-dwelling mammals ever. And the rhinoceros was, ...

"First published as El Rinoceronte y el Megaterio: un ensayo de morfologia historica by Abada Editores, S. L., copyright (c) 2010"--Title page verso. One animal left ...