Koalas face welfare challenges from habitat loss, dog attacks, vehicle strikes, disease, and drought stress across their eastern Australian range.
Chlamydia causes ocular and urogenital disease leading to blindness, infertility, and cystitis causing chronic pain. Dog attacks cause severe traumatic injuries requiring extensive veterinary treatment. Vehicle strikes cause traumatic injuries with many koalas surviving in pain before rescue. Heat stress events cause hyperthermia as animals descend from trees seeking cooler air, increasing ground predator exposure.