"They call them the sloths of the Cretaceous period," said University of Calgary paleontologist Darla Zelenitsky. "Totally bizarre looking things." In the interview with the Canadian Press, Zelenitsky was referring to Duonychus tsogtbaatari,

Millions of years later, fossilized remains are now revealing the story of a giant, clawed dinosaur that once dominated the Earth. Paleontologists have just unearthed a brand-new dinosaur species in the Gobi Desert of Mongolia,