If large creatures like elephants, giraffes and bison are allowed to thrive, they could alter habitats that allow for the ...

Ancient sloths ranged in size from tiny climbers to ground-dwelling giants. Now, researchers report this body size diversity was largely shaped by sloths’ habitats, and that these animals ...

Their closest living relatives are anteaters and armadillos, a surprising family connection that hints at a complex evolutionary past. Today, only two sloth species survive, but once there were ...

Sloths hardly changed in size for 20 million years, and lived on the ground. Then, during a warming period around 16 million years ago, sloths adapted by evolving smaller physiques due to their ...

References [1] Palaeoproteomics resolves sloth relationships. Nature Ecology & Evolution (2019). [2] Gregariousness in the giant sloth Lestodon. Scientific Reports (2020).

Galbreath, G.J. (1985) The evolution of monozygotic polyembryony in Dasypus. pp. 243–246 in: The Evolution and Ecology of Armadillos, Sloths, and Vermilinguas. (ed. Montgomery, G.G.) Washington ...