How did climate change impact ancient kangaroos in Australia?

In a mass extinction event some 40,000 years ago, Australia lost 90% of its large species, including nearly two dozen kinds of kangaroos. New research on prehistoric kangaroo teeth suggests climate change played a much smaller role than paleontologists have thought, though not all agree.

Science reporter Ari Daniel has the story.

This article was originally published on WBUR.org.