Prehistoric Sea Sloths Ventured From Land Into Ocean, Fossils Suggest

By Macrina Cooper-White

Millions of years ago, aquatic sloths roamed shallow waters off the coast of modern-day Chile and Peru. These now-extinct swimmers had highly dense bones that facilitated their transition from land to sea by helping them sink to seafloors to graze on vegetation, according to a new report.

Only two groups of sloths exist today, both of which live in trees and grow to be the size of small monkeys. But during the Miocene and Pliocene — about 25 million to 4 million years ago — a great diversity of sloths crawled the Earth, including giant sloths that …read more

Source: Huffington Post Green

    

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