Mammal ancestor looked like a chubby lizard with a tiny head and had a hippo-like lifestyle
An animal that lived before the dinosaurs looked like a rotund lizard with a very small head and had a hippo-like semiaquatic lifestyle, according to fossils that were recently excavated in France. The amphibious animal, which represents a previously unknown genus and species of mammal ancestor, measured about 12 feet (4 meters) long, researchers reported …