Tasmanian Devils were so named for their crabby, aggressive behavior (especially around food and mating time) and the absolutely bizarre sounds that they make. They are solitary, non-monogamous, nocturnal animals, and live in burrows. Devils eat a wide variety of other creatures, though they typically only hunt things that are smaller than themselves. They also consume carrion, and thanks to their powerful teeth and jaws, are able to completely consume an animal. Devils are at their most aggressive when feeding, as it is a time that the normally solitary creatures come together and (attempt to) share a meal.
As previously stated, Tasmanian Devils are marsupials. Females are pregnant for an extremely short amount of time, and will give birth to a few dozen raisin-sized infants. Unfortunately, the female only has four teats, and so only the first four young to make it into her pouch will have any chance of survival. The young will latch on and remain in the pouch for several months. They will come out of the pouch at about four months and be weaned by six.
Wild Devil populations are now experiencing a horrific epidemic that is wiping out the species. Devil Facial Tumor Disease is a contagious cancer that causes larger tumors to form on their heads, making them unable to eat. It is believed that the disease is able to spread so easily because of the lack of genetic diversity within the population. DFTD free populations are being quarantined and captive breeding programs are trying to keep the species going to prevent extinction.