Is the bunyip real? Australia's swamp monster, explained

What the bunyip is in Aboriginal tradition

The bunyip is not one creature but many. Aboriginal nations across south-eastern Australia tell of powerful beings that live in waterholes, swamps, billabongs and rivers, and each nation has its own name and its own form for them. Atlas Obscura lists gu-ru-ngaty among the Dharawal of the south-east coast and mirree-ulla among the Wiradjuri. The forms vary as much as the names: furred, scaled or feathered, seal-like or emu-like, dog-sized or cow-sized. Many share a booming cry heard from the water.

These are living traditions, and the people who hold them are the best guide to what they mean. For the Ngarrindjeri people of south-eastern Australia, the being is the mulyawonk, a man whom the elders turned half-fish for taking more fish than he needed; Ngarrindjeri man Mark Koolmatrie, in an ABC interview quoted by Atlas Obscura, said the story teaches people to look after the environment. Barkandji artist Badger Bates, speaking about his sculpture at the Australian Museum, says the Ngatyi, the Rainbow Serpents his people credit with creating the Barka (the Darling River), sometimes take the form of a Water Dog, which is "what the white people call Bunyip". Djilang, a Geelong website on Wathaurong history and culture built with the late Uncle David Tournier of the Wathaurong Aboriginal Co-operative, includes the bunyip among its local stories. Whether those beings are real is a matter for the people whose law and stories they are. This file deals with the narrower question that settlers raised: is there an unknown animal in Australia's waters?

The popular claim: the bunyip legend in colonial print

The word reached English in Victoria. The lexicographer Sue Butler traces it to banyip in the Wathaurong language of the Geelong district; Atlas Obscura gives banib in Wemba-Wemba, spoken along the Murray. On 2 July 1845 the Geelong Advertiser and Squatters' Advocate printed a report headed Wonderful Discovery of a new Animal, about fossil bones found near Geelong. According to the article, which Djilang quotes, a Wathaurong man shown one of the bones said it came from a bunyip, said he had seen one, and drew it on request; the paper described an animal combining features of a bird and an alligator. It appears to be the first written use of the word. William Buckley, who had lived for about 30 years with the Wathaurong, described the bunyip in his 1852 life story: in Lake Modewarre and other lakes he had only ever glimpsed its back, which looked feathered, and he put it at about the size of a grown calf.

Then came the skull. In the mid-1840s a malformed skull went on show at the Australian Museum in Sydney as a bunyip skull. Accounts disagree on whether that was 1846 or 1847 and on where it was picked up, and a drawing of it appeared in the Tasmanian Journal of Natural Science in 1847. Crowds came, and the Sydney Morning Herald observed that visitors suddenly remembered odd noises from lagoons at night. Bunyip sightings went on for decades. In 1879 three miners out after duck at Hexham Swamp, between Newcastle and Maitland, reported a roaring creature with glowing eyes, and the Hexham bunyip became local folklore.

The scientific explanation: bunyip evidence, examined

The one physical specimen did not hold up. The naturalist William Macleay compared the museum skull with a second odd skull and concluded that neither was a new species; Australian Geographic reports that he took one for a deformed foal. Butler records the experts settling on a hydrocephalic foal or calf, and Atlas Obscura says it came from a deformed horse. Either way, the bunyip evidence that drew the crowds was a deformed young farm animal.

Many of the noises have a candidate too. The Australasian bittern, a secretive wetland bird, is nicknamed the bunyip bird for its deep booming call, which can be felt in the chest. ABC Newcastle reported in 2023 that the Hexham creature was later identified as the bittern, now endangered worldwide with fewer than 2,500 thought to remain. Other explanations offered over the years include seals that swam a long way up the Murray and the rare musk duck. None covers every report, but no report has ever produced a carcass or a living animal of an unknown kind.

What is still debated: memories of megafauna?

One question is genuinely open among researchers: whether some Aboriginal stories preserve memories of giant animals that died out tens of thousands of years ago. Writing in The Conversation in 2019, the geographer Patrick Nunn and the palaeontologist Luiza Ponciano called this plausible for some stories. They point to an 1846 account in which Aboriginal people recalled bunyips tall enough to rival gum trees and strong enough to rip trees out by the roots, and compare it with Palorchestes, a horse-sized marsupial. Atlas Obscura notes that the palaeontologist Pat Vickers-Rich and the geologist Neil Archbold, in their book Vertebrate Palaeontology of Australasia, raised the possibility that sightings of Diprotodon, a giant wombat-like marsupial, lay behind the stories. Nunn and Ponciano are clear that they cannot prove it.

The other debate concerns what settlers did with the bunyip. Atlas Obscura cites Christine Judith Nicholls of the Australian National University, who argues that turning a feared water being into a friendly character for children's books, films and tourist attractions emptied it of its meaning, and calls that a form of colonisation. The word drifted too: in 1853 the journalist Daniel Deniehy mocked a proposed colonial peerage as a bunyip aristocracy.

Common questions

Verdict

Is the bunyip real? Honestly, the bunyip explained takes two answers. As part of Aboriginal cultural life, the bunyip and its many relatives are as real as any living tradition, and that is not something an archive of fact-checks rules on. As an undiscovered animal, the colonial bunyip of the newspapers has nothing behind it: its one specimen was a deformed farm animal, at least part of its roar is a bird, and decades of sightings never produced a body. Real or Legend stamps it disputed rather than debunked, because the stories were never a hoax to expose, and because researchers still argue over whether some of them carry memories of giant animals that really did once live.