Expert: Aborigines wiped out Australia’s prehistoric giants
The question of what killed Australia’s so-called megafauna during the last Ice Age divides paleontologists.
The most popular theories are that climate change drove the giants to extinction more than 40,000 years ago or that Aborigines, who arrived in Australia as far back as 60,000 years ago, were responsible because of overhunting or burning the vegetation upon which the creatures fed.