The case of a 7-year-old Australian boy who was supposed to lose sight at two weeks old but can still see has stunned scientists.
A new study may explain why the Australian megafauna went extinct around 45,000 years ago.
About 50,000 years ago giant animals called “megafauna” roamed Australia. We are talking about 1,000-pound kangaroos, 500-pound flightless birds, 25-foot-long lizards and tortoises the size of cars. And after the arrival of the first humans, more than 85% of these animals went extinct.