answersLogoWhite

0

Bilbies

A bilby is a small burrowing marsupial, native to Australia.

129 Questions

Is a bilby an invertebrate?

Yes. A bilby is a small, large-eared marsupial that lives in semi-arid areas of the Australian outback.

The bilby is critically endangered, with just small colonies of this marsupial left in a few pockets of land.

How much does a bilby weigh in kilograms?

a full grown bible can weigh up to about 23 pounds!

What are the adaptations a bilby has against climate?

Bilbies are nocturnal so they avoid the hot days in their harsh environment.

They have large ears which are for thermo regulation (to cool the bilby). Blood flows quickly into the thin tissue around the Bilby's ears, preventing them from getting too hot during the day and from losing body heat quickly at night.

The bilby also does not need to drink water, which is difficult to find in its habitat. It obtains enough moisture from the food it eats.

What is the habitat of the greater bilby?

The Greater Bilby, a small marsupial sometimes known as the rabbit-eared bandicoot, is endangered, and can only be found in isolated areas of far western Queensland and the Northern Territory, and areas of the Great Sandy Desert, Pilbara and Kimberley areas of Western Australia. In Queensland, it may be seen in a protected area near Charleville, in the west.

Bilbies live in burrows in hot, dry grasslands and semi-arid spinifex areas. The burrow entrance is often positioned against a termite mound or small shrub, and a single bilby may have up to a dozen burrows that it uses either for shelter during the day, or as a quick escape route from predators.

Amazingly adaptable for their size and the threats to them, bilbies can live in sandstone ridges, gibber plains, rocky soils with little ground cover, a variety of grasslands, and acacia scrub.

How bilbies behave?

Baby bilbies are known as joeys, and female bilbies can give birth to two or three joeys at a time. The birthing process is much like that of puppies in that they do not lay eggs. They are pouch producing mammals.

What is a lesser bilby?

The Greater bilby, with the scientific name of Macrotis lagotis, is a small marsupial of Australia. It is a member of the bandicoot family, and a nocturnal omnivore which is found in arid and remote areas of the continent. The Greater bilby is the only surviving bilby: its cousin, the Lesser bilby, has not been sighted since 1931.

Can you legally own a bilby?

No.

The bilby is an endangered native marsupial of Australia. Native animals are protected by law, and in most cases may not be kept as pets. The bilby may not be kept as a pet under any circumstances.

Why is the bilby important?

A bilby is heterotrophic. It moves. It is multicellular. Its cells lack cell walls, chloroplasts, and a central vacuole, but do have the complexities of an animal cell. It is therefore an animal.

How do bilbies keep cool?

The Bilby (Macrotis Lagotis), sometimes known as a rabbit eared bandicoot, is a small marsupial of Australia. It was originally found throughout Australia, in much more hospitable environments, but habitat loss due to European settlement has driven it into the desert. It has developed a number of physical adaptations which help it to survive in its harsh desert environment.

1. Large ears.

The large ears have several purposes. The main reason for having large ears is for thermo regulation (to cool the bilby). Blood flows quickly into the thin tissue around the Bilby's ears, preventing them from getting too hot during the day and from losing body heat quickly at night.

These large ears give the bilby an excellent sense of hearing, which makes up for the fact that their sense of sight is not as well-developed. They can also be rotated, much as a cat's ears do, to discern direction and distances of sounds.

2. Sharp Claws

The bilby has sharp claws similar to those of the bandicoot. These claws allow for burrowing deep into the arid earth which pawed animals would have difficulty penetrating. There are five front digits on each foot, with the central three being longer than the outside ones.

Sharp claws also allow the marsupial to dig out plants for eating. Bilbies are omnivores and must forage for invertebrates such as insects, as well as digging out plant bulbs and tubers.

3. A Long Tongue

The bilby has a long tongue to help it when feeding on fungi, root bulbs and insect larvae.

4. Backwards-Facing Pouch

The female bilby has a backwards-facing pouch. This prevents dirt from getting into the pouch when the creature is digging.

5. Water Needs

The bilby does not need to drink water. It obtains enough moisture from the food it eats, which includes insects, seeds, bulbs, fungi, spiders and larvae.

6. Long Snout

The bilby has a long snout, and an excellent sense of smell. These two adaptations help it to hunt out and catch small prey such as the small invertebrates (insects and larvae) on which it feeds, and also helps it to reach other foods such as bulbs, fruit, fungi and seeds easily.

7. Reproduction

As a marsupial, the bilby has a shorter gestation period than other mammals. Its gestation period is only around fourteen days.

8. Shelter

The bilby digs a burrow around 1-2 m in length to escape the heat of the day. The shelter can easily be up to 10 degrees cooler than the surface temperature. It is nocturnal, only emerging at night to obtain food.

What are the physiological adaptations of a bilby?

Bilbies have large ears for thermo regulation (to cool the bilby). Blood flows quickly into the thin tissue around the Bilby's ears, preventing them from getting too hot during the day and from losing body heat quickly at night. Because of these large ears, the bilby has an excellent sense of hearing, which makes up for the fact that its sense of sight is not as well-developed. The ears can also be rotated, much as a cat's ears do, to discern direction and distances of sounds.

Bilbies live in the dry outback, and they have sharp claws for burrowing deep into the arid earth. There are five front digits on each foot, with the central three being longer than the outside ones. Sharp claws also allow the marsupial to dig out plants for eating. Bilbies are omnivores and must forage for invertebrates such as insects, as well as digging out plant bulbs and tubers. The bilby's long tongue helps it when feeding on fungi, root bulbs and insect larvae. It also has a long snout, and an excellent sense of smell. These two physiological adaptations help it to hunt out and catch small prey such as the small invertebrates (insects and larvae) on which it feeds, and also helps it to reach other foods such as bulbs, fruit, fungi and seeds easily.

What is a group of bilbies called?

There is no particular name for the male bilby.

What is the life span of a bilby?

Both male and female bilbies can live for 6-7 years in the wild. There is no consistent significant difference in life span between the genders, despite the fact that among some of the smaller marsupial species in Australia, males live much shorter lifespans.

In captivity, male and female bilbies have been known to live up to 9 years.

What physical adaptations does a greater bilby have?

Greater bilbies are omnivores and nocturnal feeders. They eat ants, termites, beetles, centipedes and grasshoppers and other insects, larvae, seeds, bulbs, fruit and fungi. Occasionally they may eat small mammals. They use their strong forelegs to dig and search for food, and their long nose to help dig out larvae as well.

How much food does a bilby need to eat?

Bilbies are omnivores and nocturnal feeders. They eat ants, termites, beetles, centipedes and grasshoppers and other insects, larvae, seeds, bulbs, fruit and fungi. Occasionally they may eat small mammals. They use their strong forelegs to dig and search for food, and their long nose to help dig out larvae as well.

Bilbies drink water, but much of the time they are able to obtain sufficient moisture from the foods they eat.

Where is the greater bilby found?

Greater bilbies (small marsupials sometimes known as rabbit-eared bandicoots) are critically endangered, and can only be found in isolated areas of far western Queensland and the Northern Territory, and areas of the Great Sandy Desert, Pilbara and Kimberley areas of Western Australia. In Queensland, they may be seen in a protected area near Charleville, in the west.

Bilbies live in burrows in hot, dry grasslands and semi-arid spinifex areas. The burrow entrance is often positioned against a termite mound or small shrub, and a single bilby may have up to a dozen burrows that it uses either for shelter during the day, or as a quick escape route from predators.

Amazingly adaptable for their size and the threats to them, bilbies can live in sandstone ridges, gibber plains, rocky soils with little ground cover, a variety of grasslands, and acacia scrub.

Prior to European settlement, bilbies were across about two-thirds of Australia, but being highly vulnerable to habitat loss and competition with introduced animals, it has not survived in those areas.

The link below gives a map showing the current known distribution of the bilby.

What is the Aboriginal name for a bilby?

The name "bilby" is believed to be derived from an aboriginal word, possibly meaning "long-nosed rat", although this has not been verified.

There are dozens of aboriginal dialects remaining, so other language groups have different names for the bilby. Some of these include:

  • mankarr - from the Manjilijarra language of Western Australia
  • warlpajirri - from the Warlpiri of the Northern Territory
  • ninu - in the Pitjantjatjarra language of South Australia
  • ahurt - Arrernte of the Northern Territory
  • dol-goitch or dal-gyte - fairly widespread through the mainland

Does a bilby have any special features or abilities?

Yes. The Bilby (Macrotis Lagotis), sometimes known as a rabbit eared bandicoot, is a small marsupial of Australia which has developed a number of special features which help it to survive in its harsh desert environment.

1. Large ears.

The large ears have several purposes. The main reason for having large ears is for thermo regulation (to cool the bilby). Blood flows quickly into the thin tissue around the Bilby's ears, preventing them from getting too hot during the day and from losing body heat quickly at night.

These large ears give the bilby an excellent sense of hearing, which makes up for the fact that their sense of sight is not as well-developed. They can also be rotated, much as a cat's ears do, to discern direction and distances of sounds.

2. Sharp Claws

The bilby has sharp claws similar to those of the bandicoot. These claws allow for burrowing deep into the arid earth which pawed animals would have difficulty penetrating. There are five front digits on each foot, with the central three being longer than the outside ones.

Sharp claws also allow the marsupial to dig out plants for eating. Bilbies are omnivores and must forage for invertebrates such as insects, as well as digging out plant bulbs and tubers.

3. A Long Tongue

The bilby has a long tongue to help it when feeding on fungi, root bulbs and insect larvae.

4. Backwards-Facing Pouch

The female bilby has a backwards-facing pouch. This prevents dirt from getting into the pouch when the creature is digging.

5. Water Needs

The bilby does not need to drink water. It obtains enough moisture from the food it eats.

6. Long Snout

The bilby has a long snout, and an excellent sense of smell. These two adaptations help it to hunt out and catch small prey such as the small invertebrates (insects and larvae) on which it feeds, and also helps it to reach other foods such as bulbs, fruit, fungi and seeds easily.

7. Reproduction

As a marsupial, the bilby has a shorter gestation period than other mammals. Its gestation period is only around fourteen days.

Where do the lesser bilbies live?

Bilbies (small marsupials sometimes known as rabbit-eared bandicoots) are critically endangered, and can only be found in isolated areas of far western Queensland and the Northern Territory, and areas of the Great Sandy Desert, Pilbara and Kimberley areas of Western Australia. In Queensland, they may be seen in a protected area near Charleville, in the west.

Bilbies live in burrows in hot, dry grasslands and semi-arid spinifex areas. The burrow entrance is often positioned against a termite mound or small shrub, and a single bilby may have up to a dozen burrows that it uses either for shelter during the day, or as a quick escape route from predators.

Amazingly adaptable for their size and the threats to them, bilbies can live in sandstone ridges, gibber plains, rocky soils with little ground cover, a variety of grasslands, and acacia scrub.

Prior to European settlement, bilbies were across about two-thirds of Australia, but being highly vulnerable to habitat loss and competition with introduced animals, it has not survived in those areas.

The first link below gives a map showing the known distribution of the bilby.

The second link also shows a map displaying how the bilby's habitat in Queensland has shrunk since European settlement.

What does a Lesser Bilby eat?

Lesser Bilbies are believed to be extinct. Before they were extinct, however, they were shown to be omnivorous, feeding mainly on ants, termites, seeds and roots of the tough spinifex and desert plants that were found in its habitat. Examination of stomach contents of deceased specimens also indicated the fur of rodents, suggesting that it was an opportunistic feeder which would grab the occasional small native hopping mouse.

Unlike its larger cousin, the Greater bilby, there is no evidence to suggest that the lesser bilby ate fruit or fungi.

Can bilbies climb trees?

No. Bilbies cannot climb trees. They are effective burrowers.

Does the greater bilby hibernate in winter?

Bilbies do not hibernate.

Most Australian marsupials do not hibernate. Only the Mountain pygmy possum is known to hibernate.

What are threats to bilbies?

Bilbies, also known as rabbit-eared bandicoots, are critically endangered. These marsupials used to cover two thirds of Australia, but now have been pushed back so that they only live in deserts.

The introduction of foxes and cats, which have turned feral, have resulted in their being endangered, as the vulnerable bilby is an easy food source for them, as well as for dingoes. Trapping to catch foxes has unfortunately resulted in the bilbies themselves often being caught.

The introduction of the rabbit, which voraciously eats much of the vegetation the bilby eats, has resulted in reduced food sources. Rabbits also dig burrows which cause problems for the bilby's habitat, as they tend to cause the bilbies to be caved in. The bilby's habitat has also suffered from being trampled on by herds of stock animals.