A scan of a sick koala named Wally, rescued by the animal rescue agency, Wildlife Information, Rescue and Education Service, also knows as WIRES, on the outskirts of Sydney in an area where urban development is encroaching on koala habitat, is seen as he is treated as part of a rehabilitation process at Sydney University Veterinary Teaching Hospital in Sydney, Australia, July 10, 2020. REUTERS/Loren Elliott SEARCH "KOALAS ELLIOTT" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES