Paleontologists have identified peptide markers for three species of extinct Australian megafauna — a hippo-sized wombat, a giant kangaroo, and a marsupial with enormous claws — opening the way for research which could help us understand how a series of unexplained extinctions of megafauna 50,000 years ago happened, and if humans were responsible. Palorchestes azael. Image credit: Nellie Pease / CABAH / CC BY-SA 4.0. “The geographic...
