Humans coexisted with three-tonne marsupials and lizards as long as cars in ancient Australia

When people first arrived in what is now Queensland, they would have found the land inhabited by massive animals including goannas six metres long and kangaroos twice as tall as a human. We have studied fossil bones of these animals for the past decade. Our findings, published today in Nature Communications, shed new light on the mystery of what drove these ancient megafauna to extinction.