It prefers feeding on animals of Small size or larger, though it isn't averse to eating humanoids when presented the opportunity. Bunyips are quite territorial, and readily attack when intruders threaten their hunting grounds. Bunyips mate annually, during the late spring. During this period, bunyips become even more aggressive. After mating, couples split, with the female wandering off to find a place to birth a small litter of four to six pups. Females watch their pups for a few days, until they become independent enough for the mothers to move on.