Tasmanian Devil (3 page)

Devils are opportunistic feeders, not specialist predators. They eat a variety of foods. They do kill live prey, and they forage for carrion, both vertebrate and invertebrate. While there are a few, unsubstantiated, reports of cooperative hunting, with one devil flushing prey and the other chasing it down, the animal is overwhelmingly a solitary hunter. The devil's physique, stealth and ability to run quickly in short bursts make it a good night hunter, with wombats favoured for their fat content and their relative slowness. A devil is incapable of running down a bounding wallaby or sprinting rabbit. Its jaw strength and teeth have evolved to consume carrion, including tough gristle, skin and large bones.

Technically, if a sick lamb or wallaby is near death and a devil begins to eat it, that is an act of predation, not foraging, despite the devil having no role in bringing its ‘prey' to that state. It is also technically correct to state that devils hunt tadpoles and moths, both of which feature in their diet. And if a devil opportunistically scents a nest of helpless baby quolls, native hens, wombats or, indeed, devils, and consumes them, that is predation, although the behaviour associated with the act is foraging.

That the devil is not a selective or timid eater is amply borne out, and not just by the antics of its tree-and-rock-chomping cartoon counterpart (which Warner Bros. brought to life in 1954 when there was hardly any available literature on devil behaviour). Items such as shoes regularly disappear off the verandahs of beach shacks and, if ever found again, have been well chewed. Devils love scavenging around rubbish dumps, but so do other opportunistic carnivores such as spotted-tailed quolls, cats, bears, hyaenas and foxes. Devils frequent beaches in search of dead fish and much else potentially edible deposited on the tideline. On one occasion at Geoff King's ‘devil restaurant', during the day, Nick Mooney watched newly independent devils fossicking for and eating kelp maggots.

David Randall, who worked as a ranger for many years in all parts of Tasmania, studied the native water rats of the Freycinet Peninsula on the east coast by trapping them with chunks of possum. One morning he found a sprung trap that a devil had subsequently broken into, forcing the wire apart to get at the bait and whatever creature was in there with it.

Garry Sutton, ranger in charge of the Narawntapu National Park in northern Tasmania, once had to shoot an injured horse in the park. Because of its size and the park's public role, he used a front-end loader to dig a deep hole and bury the animal. Devils soon dug tunnels down through the sand to the decomposing corpse.

One of Alan Scott's cows died giving birth. He left the corpse overnight and returned the next morning to see ‘a devil coming out the backside'.
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That's not unusual: the easiest way into a large animal is through the soft parts. And Guiler reported that he and a colleague ‘found three devils sleeping off their feast inside the rib cage of a cow they were consuming'.
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Staked out roadkill wallabies provide the bill of fare attracting devils to the island's
scattering of devil restaurants.(Courtesy Nick Mooney)

The observed record for devils feeding simultaneously—also on a cow—is 22. This is a remarkable behavioural aspect of this generally solitary animal. It is also misunderstood behaviour, and one of the reasons why devils have such a bad reputation.

Far from being a free-for-all, communal devil feeding is structured and purposeful, and is properly described as ritualised behaviour. The screaming and apparent fighting is an elaborate combination and variety of vocalisations and postures by which order is maintained. The noises also act as a compass at night, alerting other devils in the area—just as daylight-circling vultures attract others—which saves them wasting energy looking for food. Smaller carcasses equal less noise. The perceived practice of eating ‘everything'—because it disappears—is the result of individuals taking what they can and hiding with their share to consume it in peace.

Devils are the great hygienists of the Tasmanian bush and long ago extended that courtesy to farmers, eating their dead and sick livestock and in the process breaking the sheep tapeworm cycle, keeping the blowfly population down and relieving conscientious landowners of the need to bury dead stock. For these reasons there have been proposals to introduce devils to Flinders Island and King Island, where roadkill wildlife smells and is unsightly, attracting adverse reactions from tourists. One problem with the proposal is that the same danger would be posed to devils feeding by the roadside: speeding cars. A solution would be to heave roadkill into the bush, where it can be consumed in safety. Devil researcher Menna Jones and her volunteers did this along the road to Coles Bay on the Freycinet Peninsula almost every night during the years of her work there. The number of devils killed by cars decreased dramatically.

Communal feeding gives rise to the apparent paradox that this asocial animal indulges in a complex social ritual as often as every third or fourth night. David Parer, an internationally known film-maker specialising in wildlife documentaries, has spent many years filming and observing devils and is well aware of the social nature of the species: ‘We think of them as bad-tempered and vicious but watch them in the den and their family lives are not unlike a human life. There's playtime, squabbles, dinner time, discipline problems, teaching and learning'.
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Are Tasmanian devils dangerous? Of the many people working closely with devils—biologists, orphan carers, wildlife park employees—few would disagree that although individual animals have greatly varying personalities the species as a whole is timid. A wild devil trapped in a cage (though not a painful leg-hold trap or snare) will ‘freeze' or become inert and won't struggle if carefully handled. Quolls, by contrast, bolt as soon as they can, and possums are notoriously difficult to handle. Guiler experimented empirically by putting devils and rats together in a small enclosure. The devils, he reported, were at times wary of the scurrying rats. If anyone knew them, Guiler did: ‘most of the more than 7000 Tasmanian devils he handled were docile to the point of being lethargic and could be handled with ease'.
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On the other hand devil rage, though rare, is real. Early in 2005 two wildlife volunteers released a newly weaned devil from a trap. It turned and chased them so aggressively that they had to leap onto their car. Devils can often be seen chasing one another in their wildlife park enclosures, and the same behaviour occurs in the wild during feeding bouts.

Devils scare easily and when startled will often shake. A screeching and biting devil acting purely out of fear will, however, if held firmly, become very still. And they are sensitive. In 2004 both David Pemberton and his family and Nick and Kate Mooney hand-reared devils whose mothers had died from DFTD. Pemberton visited the Mooneys one Saturday, after which, said Nick, their devil Eric, ‘a charismatic charmer with a short fuse, came in behaving normally, until Kate fired up the vacuum cleaner—he changed completely and has remained one hundred per cent timid for days, hiding in dark corners. I suspect a combination of [lingering] smells from David's devils [on his clothes] and the size and noise of the cleaner may have told him that a large, dominant devil had entered the house'.
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Juvenile devils display some of the characteristics of young domestic animals—
inquisitiveness, playfulness.(Courtesy David Pemberton)

Timid and sensitive, yes—yet in the popular imagination the devil has always been considered quite the opposite, as in this ludicrous 1917 description:

Curiosity having been aroused as to why these ugly things received their highly suggestive name, it was stated that there can be little doubt that they deserved it. It is another case of ugliness going to the bone. Indeed, any virtues they possess are negative ones, and their vices are most positive. They are very savage, and have frequent fights among themselves, while they slay other creatures for the mere wanton lust of slaughter. When they attack anything, a member of their own tribe or any other species, they will practically tear it to pieces in sheer ruthlessness . . . During the day it is too sleepy to be otherwise than very stupid, but with the oncoming of covering darkness it displays a cunning and a cleverness inseparably connected in the human mind with the original owners of the despised name of devil.
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Or this:

The Tasmanian Devil (
Sarcophilus ursinus
) has the reputation of being the fiercest, most wantonly destructive beast in the animal kingdom. It is ugly and morose; a small animal, black with a white front to the throat, it is capable of doing enormous damage to sheep, killing wantonly sometimes large numbers of the flocks. Fortunately for the Tasmanian farmer, if not for Natural History, the number of devils is decreasing rapidly.
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No less a scientist than Clive Lord, an eminent early Director of the Tasmanian Museum and Art Gallery, described the devil as ‘exceedingly quarrelsome'
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and later as ‘of fierce disposition . . . It cannot be considered a pleasant animal to have much to do with'.
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Devils were presumed to be scarce when Lord wrote about them and, if they were, it is possible that he had relied on scanty and biased rural accounts for his observations, because he was wrong on all three counts.

Errors of fact by professionals haven't helped the devil. This watercolour is by
D. Colbron Pearse, who for a period in the 1950s was acting Director of the
Tasmanian Museum and Art Gallery. The young are not accurate depictions of
devils—rather, they are hybrids of spotted-tailed quolls and devils.
(Courtesy Collection Tasmanian Museum and Art Gallery)

Mistakes are understandable—up to a point. When, in 1962, a London newspaper ran a feature on Tasmanian devils and accompanied it with a photograph of a thylacine, the editor received fourteen complaints.
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Less forgivable is a popular American animal encyclopedia which, even in its sixth printing in 1988, stated: ‘The Tasmanian devil is jet black with white blotches and a bright pink nose, ears, feet and tail . . . The Devil is a burrower but when cornered it will often dive into the water and swim a long distance before surfacing under banks or overhanging vegetation'.
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As a combination of a platypus and a kindergarten painting this takes some beating.

Equally improbable is the link the Tasmanian devil supposedly had with the enduring American myth of the Jersey Devil. This creature allegedly came to exist in the eighteenth century in the swamps of south-eastern New Jersey, having a horse-like head, wings, cloven feet and thick tail. Sightings of it were regular, including one by Napoleon Bonaparte's brother Joseph while hunting there (Joseph lived in America between 1815 and 1832) and it was even seen in the company of a headless pirate. Joseph Bonaparte may have known of a strange new ‘devil' animal because his sister-in-law, the Empress Josephine, kept a menagerie that included marsupials.