Paleontologists in southern Argentina have discovered the remains of a previously unknown dinosaur in the Patagonia region. The small, armor-plated animal proves that the area is home to a bigger story than what we’ve previously known about life in the Cretaceous period. Dr. Sebastián Apesteguía, who led paleontologists on the team, talks with The World’s host Marco Werman about what the dinosaur would have looked like and why this is a major discovery for the region.