Scientists find a mass grave of extinct 'mega-wombats' in Australia

Paleontologists working in Queensland, Australia, have uncovered the biggest find yet of diprotodons, a pre-historic marsupial that's also known as the "mega-wombat". Scientists hope that the discovery of these 50 distinct skeletons may shed some light behind the reason for this species' extinction. » 6/21/12 11:41am 6/21/12 11:41am