A previously unknown mass extinction may have killed up to a third of large marine animals 2-3 million years ago, according to an international team of paleontologists. Carcharocles megalodon pursuing two prehistoric whales. Image credit: Karen Carr / CC BY 3.0. The team, led by Dr. Catalina Pimiento of the Leibniz Institute for Evolution and Biodiversity Science and the Paleontological Institute and Museum at the University of Zurich, analyzed fossilized...
