(Common & Hairy-nosed)Burrowing Marsupial Mammal of Australia

Wombat Description What is a Wombat?

General Description of Wombats

The wombat is a nocturnal herbivorous burrowing marsupial mammal. That is to say; it is mainly active during the night, eats plants, shelters in a barrow underground, raises its young in a pouch on its abdomen (tummy) and feeds its babies milk. It is found only in Australia. It looks like a baby bear, but it is in no way related to a bear. Its closest living relative is the koala. With a relatively large brain, it is also believed to be the smartest marsupial.

How Big is a Wombat?

The wombat is about one meter in length, 36 cm tall and weighs around 35kgs. Some can weigh as much as 50kgs. It is the largest burrowing mammal in the world and the second largest marsupial after the kangaroo.

Other Characteristics of the Wombat

The wombat's thick soft fur can vary in colour from light brown to black. It has a large head with a thick snout, thick whiskers and short stumpy legs with sharp claws which its uses to tunnel underground. Wombats have small eyes with poor eyesight but compensate for this with an excellent sense of smell and hearing. They can also detect very small ground vibrations.

The wombat has a round sloping rear-end with an extremely tiny tail, measuring around 2cm. Its back is covered with very thick skin which is also extremely hard. When attacked, in or out of its burrow, the wombat points its hard well-padded rear at the attacker to protect itself.

Wombats have two incisor teeth on each of their upper and lower jaws. These teeth as well as the molar teeth growth throughout the animal's life compensating for the wear and tear on them as the animals.

The female wombat's pouch entrance faces backwards. This adaptation prevents dirt from entering the pouch when the animal is digging and also because the wombat has very low ground clearance it prevents the young baby from hitting obstacles or getting entangled in vegetation when the wombat runs.

These animals normally walk very slowly but can gallop as fast as 40 kph for short periods when they want to. They can also swim.

Wombats is very shy animals. You would rarely see them in the wild. They are territorial and solitary animals. That is, they mark out their home range by rubbing their scent on trees and by scattering their dropping throughout their home range and live within this range on their own. Usually wombats are quiet but grunt loudly at intruders.

Male and female wombats have a similar appearance. They live for approximately 15 years.

How the Wombat Got its Name

Early European settlers referred to these animals as badgers because they were about the same size and behaved like that animal back in Europe. A white settler, named John Price, first wrote about this animal in 1798 and called it a 'Whom-batt'. He was using a name used by the Dharuk Aboriginal people who once lived in the area that is now the city of Sydney, They called this animal a 'wambad'.

Wombat Species Types of Wombats

Common Wombat

Hairy-nosed Wombat

There are three species of wombats.

Common Wombat (Vombatus ursinus)

The common wombat, also known as the bare-nosed wombat, is the only surviving member of the species Vombatus. It has shorter ears, a narrower snout, rougher fur and a no hair in its nose. Its front paws are more dexterous than that of the hairy-nosed variety. This allows the common wombat to grasp vegetation to rip it out of the ground.

Hairy-nosed Wombat (Lasiorhinus krefftii & latifrons)

The Northern Hairy-nosed Wombat (Lasiorhinus krefftii) and Southern Hairy-nosed Wombat (Lasiorhinus latifrons) have larger ears, a hairier nose as the name suggests, have slightly longer heads with squarer snouts and softer fur than the common wombat.

The Difference is Huge - Genetically Speaking
Did you know that even though wombat species are related, the hairy-nosed wombat is genetically very different from the common wombat? Their genetic codes are around 8% different. This difference in genes is greater than that between humans and chimpanzees which is only 2% different.

Wombat Habitat Where Do the Wombats Live?

Wombat Distribution Around Australia

The common wombat lives in temperate forests and grasslands of eastern Australia extending from Queensland to southern parts of Victoria and all of Tasmania. It is one of the few marsupials that will venture above the snowline in some of the mountainous areas of New South Wales and Victoria. (Red areas of map).

The northern hairy-nosed wombat is only found in a very small area of east-central Queensland in semi-arid grasslands and eucaplypt woodlands. (Little purple dot on map).

The southern hairy-nosed wombat is only lives in parts of southern South Australia and south-western Western Australia in semi-arid grasslands and eucaplypt woodlands. (Green area on map).

A Wombat's Home Range

The home range of both male and female wombats is typically about 18 ha, with an inner core area of around 3 ha and circular in shape. This home range size is considered a comparatively small area for an animal of its size; but given its low-energy lifestyle this area provides it all the food its needs. Wombat ranges may overlap with that of others, but they do not actively defend their territories; they just keep out of each other's way.

The Wombat's Burrow

Wombats are very fond of their burrows which can be up to 20m long. They spend up to two-thirds of their lives them. Wombats dig their burrows into slopes, gullies and creeks.

The wombat hollows out its burrow by digging with its front legs while pushing the dirt out with its rear feet. It digs the sides and ceiling of its tunnels by lying on its side and using is front feet. It has very strong legs and flat claws for digging.

A wombat can have up to twelve burrows scattered around its home range with three or four serving as its main residence. These main burrows are more elaborate with many sub-tunnels, sleeping quarters and entrances. A wombat typically spends 1–4 days sleeping in the same burrow and then moves to another. It also appear to share burrows. It is not certain if there is any family connection between these sharing wombats.

Wombat Diet What does a Wombat Eat?

Wombats are nocturnal grazing herbivores that usually come out after dark to feed. In cooler months they may also come out during the day. Their main food is native grasses, roots and tree bark. Because of its rough diet, a wombat's teeth grow continuously as they are worn down by its rough diet and digging. Wombats graze for between three to eight hours a day.

Wombats have a very low metabolic rate.

Wombat droppings (poo) is called a "scat". The wombat leaves it outside its barrow as a scent signal to find its way back in the dark and to signal to other wombats that the barrow is occupied.

Wombat Reproduction Baby Wombat

Wombats usually breed between October and January when there is plenty of vegetation and the weather is mild. Courtship consists of the male wombat chasing the female in wide circles, biting her on her rump and rolling her over on her side for coitus.

The gestation period for wombats is 20-30 days. The young neophyte, no bigger than a jelly-bean and weighing just a half a gram exits from its mother's birth canal and crawls up into her rearward-facing pouch. There it latches onto a nipple and remains hidden and growing for around 6-10 months. After this time it will venture out of its pouch to feed with its mother and is fully independent 8-10 months later.

A baby wombat is called a "joey".

Wombats become sexually mature at about 2 years of age.

Wombat's Unique Adaptations How the Wombat has Adjusted to its Environment

Wombats have a number of adaptations that makes them more suitable for the harsh and arid Australian environment.

• Burrowing Behaviour - Keeps them cool during the hot Australian daytime.

• Rear-facing Pouch Opening - Prevents dirt from entering the pouch when burrowing underground.

• Strong Digging Claws - For digging

• Low Metabolic Rate - Means it needs relatively little food compared to other animals.

• Continuous Teeth Growth - Allows to eat rough gritty vegetation because teeth wear is being compensated for.

Wombat - Threats and Predators Is the Wombat Surviving?

The major threats to the wombat today are dingoes, foxes and humans. When threatened a wombat will flee to the nearest burrow. If a predator follows it into the burrow the wombat will defend itself by smashing the attackers head against the roof or wall of the burrow with its hard well-protected rump.


Wombat - Conservation Status Is the Wombat Endangered?

All wombats are protected in all sates of Australia except Victoria.

• Not Threatened or Endangered - common wombat and southern hairy-nosed wombats

• Critically Endangered - northern hairy-nosed wombat.

Wombats as Pets Pet Wombats are Not Such a Good Idea

Wombats are docile solitary wild animals that will avoid people. They are not suitable for domestic pets.

While wombats may look cute and cuddly, especially when young, they can be quite aggressive, unpredictable and even dangerous when they get older. A large wombat is a very strong animal. It can easily knock you over and even claw or bite you if provoked.  A determined wombat can easily break down or burrow under fences, doors and even walls.

Wombats are best left in the wild. In most states in Australia is it illegal to have a wombat as a pet.

Extinct Wombats Giant Wombats of the Past

Fossil records show that there were once massive wombats living in Australia. The biggest of these was the Giant Wombat (Phascolonus gigas) which was two meters in length and weighed between 180 to 250 kgs. They were as tall as a human. These animals were so large that they, unlike present day wombats, didn't burrow underground, but instead lived their entire lives above ground. These animals became extinct about 40,000 years ago. Two reasons have been suggested for their extinction, alone with other mega-fauna in Australia. The first is climate change where Australia became drier and more arid depriving these huge animals of their food supply. The second is that early Aboriginals may have hunted down these huge slow moving animals hastening their extinction.

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