LifeFossil trove reveals three new species of ancient egg-laying mammals A set of Australian fossils offers a rare glimpse of the ancient relatives of platypuses and echidnas that lived alongside the dinosaurs 100 million years ago 51¶¯Âþ
LifeEarly fossil identified as new species of Tyrannosaurus A dinosaur known only from a partial skull has been dubbed Tyrannosaurus mcraensis, adding a new twist to long-running debates about putative relatives of Tyrannosaurus rex 51¶¯Âþ