We go Down Under to learn about koalas with Australian zoologist Danielle Clode, who has written a new book called Koala: A Natural History and an Uncertain Future. Koalas regularly appeared in Danielle’s backyard, but it was only when a bushfire came close that she started to pay closer attention to them. Her book shows how complex and mysterious they are. We discuss how koalas are affected by disease, climate change, wildfires, and over population.