SANTA CRUZ — During the last ice age, known as the Pleistocene, Santa Cruz County was a wild place populated with ancient humans and larger-than-life creatures, or megafauna, such as mastodons and ...

Sloths once came in a variety of sizes and lived in multiple settings in many parts of the world. A study in the journal Science examined sloth evolution over the past 35 million years, investigated ...

Giant sloths with razor-sharp claws and as large as Asian bull elephants once roamed the Earth, snacking on leaves at the tops of trees with a prehensile tongue. Now, scientists have figured out why ...

Add Yahoo as a preferred source to see more of our stories on Google. Close up of a fuzzy sloth face Massive Megatherium sloths once stood as large as Asian elephants, ripping foliage off treetops ...

BOURNEMOUTH, England (Reuters) - Scientists have uncovered evidence of ancient humans engaged in a deadly face-off with a giant sloth, showing for the first time how our ancestors might have tackled ...

SANTA CRUZ, Calif. (KRON) — Elementary school students were playing in the forest when they found a strange object. The curious kids suspected it was a bone from a very big animal that once lived in ...

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Modern sloths hang out in trees, move at a slow pace and eat a vegetarian diet -- but the same thing can't be said for their extinct relative, Mylodon. This ancient ground sloth, which lived in South ...

(CNN) — An unprecedented discovery made by archaeologists working in Brazil is shaking up what we know about the first inhabitants of the Americas. (CNN) — An unprecedented discovery made by ...