Quokka
Despite being called “the world’s happiest animal,” the quokka does have its occasional mean streak. In 1992, the Rottnest Island Nursing post in Australia admitted seventy-two patients who had received bite wounds from the cuddly creature after attempting to pet and feed it. Quokka mothers are also known to “eject” their offspring from their pouch if pursued by a predator as a means of distraction.