Four Wild Ways to Save the Koala (That Just Might Work) NYT: Science By: Emily Anthes and Chang W. Lee 15 April 2024 at 00:01 To protect Australiaβs iconic animals, scientists are experimenting with vaccine implants, probiotics, tree-planting drones and solar-powered tracking tags. A veterinary nurse treats a koala infected with chlamydia at Currumbin Wildlife Hospital in Currumbin, Australia.