...scientists at Harvard University and the University of Washington report evidence of a hibernation-like state in an animal that lived in Antarctica during the Early Triassic, some 250 million years ago. The creature, a member of the genus Lystrosaurus, was a distant relative of mammals. Lystrosaurus were common during the Permian and Triassic periods and are characterized by their turtle-like beaks and ever-growing tusks... Lystrosaurus arose before Earth's largest mass extinction at the end of the Permian Period... and spread across swathes of Earth's then-single continent, Pangea, which included what is now Antarctica... Today, paleontologists find Lystrosaurus fossils in India,...