Fearsome Australian 'Lion' Could Climb Trees, Study Says

The discovery of claw marks in a bone-filled cave in Australia suggests an extinct, "anatomically bizarre" predator was able to climb trees and rocks, meaning it would have been a threat to humans, writes Myles Gough.

Australia's extinct marsupial lion, Thylacoleo carnifex, was the continent's top predator at the time of human arrival 50,000 years ago.