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Giant ground sloths’ fossilized teeth reveal their unique roles in the prehistoric ecosystem
Imagine a sloth. You probably picture a medium-size, tree-dwelling creature hanging from a branch. Today’s sloths – commonly featured on children’s backpacks, stationery and lunch boxes – are ...
Harlan’s ground sloth fossil skeleton excavated and displayed at the La Brea Tar Pits in Los Angeles. Larisa DeSantis Imagine a sloth. You probably picture a medium-size, tree-dwelling creature ...
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