Original: New evidence based on accurate optically stimulated luminescence and Uranium-thorium dating of megafaunal remains suggests that humans were the ultimate cause of the extinction of megafauna in Australia.
Simplified: New evidence Scientists have got new evidence, based on new and better ways of finding dates, using optically stimulated luminescence and Uranium-thorium dating of megafaunal bones. This suggests that humans were the main cause of the extinction of megafauna in Australia.