The Bunyip(Monstrum marsupialis.) may be responsible for the unearthly shrieks heard near some billabongs in Australia.
They are 8 feet long and 2 to 3 feet wide. They appear to be a marsupial wih flippers, a horselike tail and tusks in the males. Bunyips often live in a hollowed-out termite mound near a creek. They feed on the young of marsupials, which they drown or gore. They once dwelled along large streches of the Murrumbidgee river but after its discovery by Europeans in 1821 they have been confined to the most remote regions. Whether they ever co-existed with Marsupial Dragons is unknown.