Ancient Australia’s predator hierarchy was flipped — giant raptors ruled while T. rex-like dinosaurs stayed small.

Between 122 and 108 million years ago, the Australian landmass was much farther south than today. Victoria was positioned within the Antarctic Circle, separated from Tasmania by a vast rift valley ...

In a struggle for survival, the heartbreaking sounds of the mammals’ labored breathing and faint high-pitched cries for help ...