Add Yahoo as a preferred source to see more of our stories on Google. Harlan's ground sloth fossil skeleton excavated and displayed at the La Brea Tar Pits in Los Angeles. Larisa DeSantis A two-toed ...
Piecing together a 20,000-year-old ecosystem The nests do more than document an odd behavior; they help reconstruct an entire ecosystem at a moment in deep time. The presence of owl pellets, small ...
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Imagine a sloth. You probably picture a medium-size, tree-dwelling creature hanging ...
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Larisa R. G. DeSantis, Vanderbilt University and Aditya Reddy Kurre, University of ...
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