With four flippers, how did the plesiosaur swim? Like a penguin, study says
Thursday, December 17, 2015 - 14:54
in Paleontology & Archaeology
Among the stranger creatures to roam the earth during the time of the dinosaurs was not a dinosaur at all, but a marine reptile — the plesiosaur. This odd predator navigated Mesozoic Era waters with four flippers — two in the front and two in the back — a design unlike anything seen in modern-day...