Koalas in Australia are facing extinction due to a rampant chlamydia epidemic that is killing thousands and rendering many sterile. Wildlife hospitals, like Currumbin Wildlife Sanctuary, are treating affected koalas while researchers from Queensland University of Technology and the University of the Sunshine Coast develop vaccines to combat the disease. Despite progress, regulatory hurdles and funding challenges persist, leaving the future of these iconic marsupials uncertain. Without effective intervention, experts warn that some koala populations may disappear within a generation.