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 ...
Long before today’s tree-dwelling sloths, a 4-ton giant roamed South America — and it may have stood and fought like a bear.
Sloth in prison -- The Great Basin now and then -- A zoologically impoverished world -- Dating an ass -- A stable of ground sloths -- Extinct mammals, dangerous plants, and the early peoples of the ...
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