"They call them the sloths of the Cretaceous period," said University of Calgary paleontologist Darla Zelenitsky. "Totally ...

Paleontologists unearthed the fossil in Mongolia’s Gobi Desert, and the find is unique because of a sheath preserved on one ...

Fossils unearthed during construction of a water pipeline in the Gobi Desert of Mongolia have revealed one of the oddest ...