The Smithsonian's National Zoo is home to three Linnaeus's two-toed sloths and shares some sloth basics, but here are three lesser-known sloth facts. 1. The Smithsonian has a collection of fossilized ...
The giant ground sloth (Nothrotheriops shastensis) is an ancient relative of living tree sloths, armadillos and anteaters. It lived during the Pleistocene Epoch (2.58 million years ago – 12,000 years ...
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," ...
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