Tasmanian devils

The world's largest surviving carnivorous marsupial

The Tasmanian devil carries that title today because its main historical rival for it, the thylacine — the striped, dog-like Tasmanian tiger — went extinct in 1936, leaving the devil as the largest meat-eating marsupial still walking the planet. It's a stocky, muscular, low-slung animal, built more like a small, powerful bear-dog than anything else in Australia's marsupial lineup, and that build isn't for show: pound for pound, a Tasmanian devil is commonly cited as having one of the strongest bites of any living mammalian carnivore, capable of crunching through bone that most scavengers would leave behind.

That bite is put to work as much on old carcasses as fresh kills. Devils are opportunistic, flexible feeders — genuine hunters when the chance arises, but scavengers just as often, and not fussy about it. Cleaning up carrion is a real ecological role: a healthy devil population helps keep carcasses (and the disease risk they can carry) from lingering on the landscape.

Why devils today live only in Tasmania

It wasn't always a Tasmania-only story. Tasmanian devils once ranged across mainland Australia too, before dying out there an estimated 3,000 years or more ago — around the same time the thylacine also disappeared from the mainland while surviving in Tasmania. The exact cause isn't fully settled science, but a shifting climate, the spread of Aboriginal human populations, and, most commonly cited, the arrival and spread of the dingo are all raised as contributing factors, likely acting together rather than any single one alone.

The dingo piece is the one that explains the geography best: dingoes never reached Tasmania at all. The land bridge across what's now Bass Strait had already flooded, cutting Tasmania off from the mainland, before dingoes are believed to have arrived in Australia — so an island that predators like the dingo simply couldn't get to became the one place devils (and thylacines, for a while longer) held on. It's a tidy, if slightly bleak, explanation for why "Tasmanian" devil is now a literal description rather than just a name.

Why they're called 'devils'

The name is older than any modern conservation story and comes straight from first impressions: early European settlers in Tasmania encountered an animal that screeched, growled and snarled with startling ferocity, especially at night and especially around a carcass, and the "devil" label stuck as a fairly literal description of how unsettling that racket sounded in the dark.

It's a case of a reputation built entirely on noise rather than actual danger to people. Devils are genuinely shy around humans and will typically flee rather than confront a person; the dramatic screeching, growling and wide, tooth-baring "yawns" that gave the animal its name are mostly about anxiety and rank-sorting around food, not predatory aggression toward anything bigger than the small-to-midsized prey and carrion they actually eat.

The formal scientific name tells a quieter version of the same story: Sarcophilus harrisii, literally "Harris's flesh-lover" from the Greek for flesh and loving, honours George Harris, the naturalist who published the first scientific description of the animal in 1807. Harris originally mistook it for a type of opossum and gave it a name that turned out to already belong to the common wombat — the tidier, currently used name wasn't settled until decades later. It's a small reminder that the devil has been slightly misunderstood, in one way or another, for about as long as anyone's been writing about it.

Devil Facial Tumour Disease and the fight to save the species

The single biggest thing to know about Tasmanian devils today is Devil Facial Tumour Disease, or DFTD — a rare, transmissible cancer first observed in the mid-1990s that spreads between devils through the biting and fighting that's a normal part of their social behaviour, particularly around food. It's one of only a small number of transmissible cancers known anywhere in nature, and it has driven a serious decline in the wild devil population since it emerged — a decline commonly cited in the vicinity of 80 percent in the hardest-hit areas, though the picture varies regionally and continues to shift as the disease and the response to it both evolve.

The response has been a genuinely significant, ongoing conservation effort. The Save the Tasmanian Devil Program, running since 2003, maintains an "insurance population" of disease-free devils — commonly cited at more than 600 animals across 30-plus zoos and wildlife parks in Tasmania and on the mainland — as a hedge against the worst-case scenario for the wild population. Vaccine research against DFTD is also underway, though it remains at an experimental, trial stage rather than a proven, deployable solution, so it's honest to describe this as an active, evolving effort rather than a problem that's been solved.

From that insurance population, disease-free devils have been released into carefully chosen wild or semi-wild sites. Maria Island, off Tasmania's east coast, received an initial group of roughly two dozen founder devils in 2012 and 2013, and the island's disease-free population is commonly cited as having grown well beyond that starting point since. On the Forestier Peninsula, near the Tasman Peninsula, a devil-proof fence built across the narrow isthmus and a reintroduction program launched in 2015 and 2016 aim to re-establish a genuinely wild, disease-free population on a peninsula devils can't simply wander off — early years there saw real losses to vehicle strikes, which has since pushed additional roadside fencing, warning signage and monitoring cameras as mitigation. None of this is a finished, settled success story — it's real, well-documented, still-unfolding conservation work — but visiting one of Tasmania's reputable sanctuaries is a genuine, direct way to see where some of that effort is actually happening.

Maria Island: where the conservation story becomes an actual trip

Maria Island, a car-free national park off Tasmania's east coast reached by a short ferry from Triabunna, is one of the more unusual places on this whole page: it's both a genuinely lovely, low-key Tasmanian day trip or overnight camping stop, and one of the real sites in the disease-free devil release program described above. There's no guarantee attached to visiting — this isn't a fenced wildlife park, it's an island doing double duty as a national park and a conservation site — but it's a rare example of a devil-recovery effort you can walk through rather than just read about.

The island's other drawcards (convict-era ruins at Darlington, Wombat Pool's famously relaxed wombats, and coastal walking tracks) stand on their own regardless of whether a devil turns up, which keeps expectations honest: go for the island, treat any devil-related sighting as a genuine bonus rather than the reason for the trip.

Nocturnal and shy: why a wild sighting is genuinely rare

Tasmanian devils are strictly nocturnal, spending the day denned up and only becoming active after dark — and on top of that, they're naturally wary of humans and quick to avoid people rather than linger nearby. Put those two things together and a wild sighting is a real long-shot for an ordinary visitor: it's not that devils are rare everywhere in Tasmania, it's that seeing one takes being in the right patch of bush after dark with a decent amount of luck.

A slow night drive through devil habitat, particularly in Tasmania's wilder northwest, occasionally turns one up crossing a road or feeding on roadkill, but this isn't something to plan an itinerary around, and driving cautiously at dusk and after dark in rural Tasmania is worth doing anyway, for the devil's sake as much as your own — roadkill is a real, ongoing threat to wild populations, including the reintroduced ones on the Forestier Peninsula.

Where to reliably see one

Given how unlikely a wild sighting really is, a wildlife sanctuary is the honest, realistic way most visitors actually see a Tasmanian devil up close — and Tasmania has several genuinely good ones, most combining a close look with real conservation and rehabilitation work rather than just a display enclosure.

• Bonorong Wildlife Sanctuary, around 30 minutes from Hobart — a wildlife rescue and rehabilitation centre with regular devil talks and feeding sessions as part of its daily tours.
• Tasmanian Devil Unzoo, at Taranna on the Tasman Peninsula — built around open, naturalistic enclosures rather than conventional cages, close to Port Arthur.
• Devils@Cradle, near Cradle Mountain — a dedicated devil conservation and breeding facility with both day and after-dark tours, the latter timed to the animal's actual nocturnal activity.
• Trowunna Wildlife Sanctuary, at Mole Creek in Tasmania's north — one of the state's longest-running wildlife sanctuaries, with daily devil sessions as a centrepiece.