Paleontologists discovered Duonychus tsogtbaatari from fossils uncovered in 2012. It was a giant, feathered creature adapted to grasp and feed on vegetation ...

By Jeanne Timmons Ground sloths emerged in South America tens of million years ago, eventually ranging as far north as Canada. While their modern relatives dwell in trees and top out at the size ...

Talk about outlandish — I’m here at the edge of the world to learn more about the demise of ancient giant sloths ... Fortuitously, they were able to compare Eberhard’s sample with Darwin ...