Friday, October 1, 2010

Species of the Month: OCTOBER

Today we embark on a new feature in which I will highlight an organism monthly for your edification and amusement. The lucky life forms will be presented on the 1st of each month (even New Years Day…well, probably). I promise they won’t always be vertebrates, but seeing as we are entering the month that contains Halloween, the Tasmanian devil seemed the most seasonally appropriate choice.

Up until fairly recently I had assumed that the Tasmanian devil was a mythical creature, like a unicorn or a narwhal*, invented by the people at Warner Brothers. Sometime over this past summer, a friend was kind enough to rescue me from this fog of ignorance and explain that the devils not only exist, but that they exist, as their name insinuates, in Tasmania.


It would be an entertaining twist if I could report that Tasmanian devils are quiet, cuddly and sociable vegetarians, but I am bound by the facts and must therefore admit that their temperament is pretty accurately depicted by the animated character seen in Bugs Bunny cartoons of yore. The devils were given their name after European settlers observed their characteristic growling, snarling and bearing of sharp teeth. The animals are nocturnal scavengers and quarrel ferociously over their finds with others of their species. During my research for this article I listened to some audio recordings of the animals and found them to be evocative of scenes in The Exorcist.

What They Eat

As scavengers, the devils have a wide diet including but not limited to snakes, birds, fish, amphibians, smalls mammals and various carrion. They’ve been known to eat animals caught in hunters’ snares and occasionally to make off with poultry from farms, as well as helping themselves to larger livestock that were already dead.† Tasmanian devils are similarly unfussy as to cuts of meat and will eat any and all parts of their food – hair, organs, and even bones. They are, however, strictly carnivorous.

Where They Live

Tasmanian devils were once found on the Australian mainland but have since gone extinct there.‡ Today they exist in the wild only on the island of Tasmania. They travel at night in search of food. Distance traveled varies with availability of food but has been recorded at as much as 10 miles.

Birth and Death

Like kangaroos and opossums, Tasmanian devils are marsupials and females are equipped with pouches to carry their newly born offspring. Females give birth to 20 to 30 little devils at a time but bodily resources only allow for the survival of 4. Often times just 2 or 3 make it to adulthood. The animals are ready to go it alone at about 8 months and typically live in the wild for about 5 years.

Some Bad News

While their numbers climbed after they achieved protected species status in 1941, the devils encountered a new threat in the mid 90’s – Devil Facial Tumor Disease (DFTD). The disease is a contagious cancer that causes the growth of large lumps on the animal’s face. These impede eating and can eventually lead to starvation. Before you start feeling too sad, let me assure you that scientists are already on it, working with both captive breeding and genomic research in order to save the beasties from extinction. With any luck, you will still be able to see a devil on your next trip to Tasmania.

Can They Hurt You?

The Tasmanian devil has a powerful jaw and can deliver a wallop of a bite relative to its size. However they’re not that big, ranging from about 9 to 26 lbs.§ You’ll probably be fine as long as you don’t try to pick them up and incorporate them into your vacation photos.

* Kidding, kidding. Narwhals are real and will possibly be discussed at length here at some future date.

† Tasmania’s Parks and Wildlife website praises the Tasmanian devils’ consumption of farm carcasses as a way of maintaining agricultural hygiene (nobody likes blowflies). However, farmers once believed that the devils were killing livestock and made much attempt to eradicate the perceived pests until Tasmanian devils were made a protected species in 1941.

‡ There is some debate as to when this extinction occurred. Some have claimed that it was as recent as 500 years ago. However, the current opinion is that they disappeared from Australia somewhere between 3000 and 4000 years ago, which would correspond to the introduction of dingoes from Asia. In any event, Tasmanian devils were already absent from the Australian mainland by the time Europe showed up, so for once we can’t blame them.

§ For what it’s worth, they are still the world’s largest carnivorous marsupial.


  1. I think a critter of the month is an excellent idea! There are fascinating ones all around us. In Texas some of them are pretty scary. Lately I was obsessed with snails (not too scary) because of my fall vegetable garden. It started showing sings of snail infestation. I noticed that I only see the adults. So, where are the baby snails? Not that I miss them really... Anyway, I just wanted to give my thumbs up to this topic idea

  2. I got bit by a scorpion last weekend. How about aligning the stars with the stinging Arachnida (yes, I had to look that up) and select Scorpion as the critter of the month for November?