An article published in the journal “Cretaceous Research” describes the discovery of a new species of mosasaur, a family of marine reptiles that lived in the Late Cretaceous. Called Kaikaifilu hervei, the animal found was probably long between 12 and 14 meters (39 to 46 feet). The fossils were found in 2010 by a Chilean expedition to Seymour Island in the Antarctic Peninsula in rocks dating back about 66 million years ago.