Inbred to Thriving: The Island Saving Australia's Koalas

An isolated koala population, once doomed by severe inbreeding, has made a stunning recovery. It is now the most thriving group in all of Australia. The turnaround happened on French Island, located off the country's southern coast. Decades ago, the small marsupials there faced a genetic crisis. With too few individuals, inbreeding weakened the population. But scientists say the island's isolation became its strength. It kept the koalas safe from key threats: bushfires, habitat loss, and the disease chlamydia. These dangers are devastating koala groups on the mainland. The French Island koalas are now crucial to survival efforts. Conservationists use them to restock and strengthen other struggling populations across Australia. Their genetic rescue offers a rare hopeful model. It shows that even severely inbred groups can recover under the right protected conditions.