How many baby Northern bettongs are in a litter?
A Northern bettong (Bettongia tropica) usually gives birth to around 1 babies.
Each of those little ones spend around 19 days as a fetus before they are released into the wild. Upon birth, they weight 8.35 kg (18.41 lbs) and measure 3.6 cm (0′ 2″). They are a member of the Potoroidae family (genus: Bettongia). An adult Northern bettong grows up to a size of 1.6 meter (5′ 3″).
To have a reference: Humans obviously usually have a litter size of one ;). Their babies are in the womb of their mother for 280 days (40 weeks) and reach an average size of 1.65m (5′ 5″). They weight in at 62 kg (137 lbs), which is obviously highly individual, and reach an average age of 75 years.
The northern bettong (Bettongia tropica) is a small potoroid marsupial which is restricted to some areas of mixed open Eucalyptus woodlands and Allocasuarina forests bordering rainforests in far northeastern Queensland, Australia. They are known as “rat kangaroos” and move about in a slow hopping manner. There are five different species in Australia of this particular animal. It is about the size of a rabbit with a large tail dragging behind.Lifespan:The typical bettong lives in the wild for about 4 to 6 years. This is a very short life span, but according to the Smithsonian’s National Zoologist, they can, under proper care, live up to the age of 15 years.The most common bettong is the Rufous Bettong and are found along the eastern coast of Australia.Behavior of the bettong:All species of the bettong are nocturnal. They carry nesting materials with their long tails and can be found in underground borrows that they escape to during the day. They like to feed at night and their range of food varies. They rarely drink water, and refrain from eating any green plants. They primarily seek fungus based plants such as mushrooms, tubers, scrubs, fruits and seeds. They use their front claws to dig for tubers identifying them via their sense of smell. These animals are able to reproduce at any time of the year, and can produce three young in a favorable year. This high rate of reproduction can lead to fluctuations in population growth.Threats:The bettong is a solitary and faces major threats. From land clearing they have experienced an extreme loss of habitat. Vast expansion in agriculture has caused a major threat in its food sources. It spends the day in a well concealed nest constructed beneath a tree, within a clump of grass or in other litter collected at ground level. Nesting material is carried using its prehensile tail. Ectomycorrhizal fungal sporocarps are the staple diet of the northern bettong. These are dug from beneath the soil at the bases of trees, and work to date suggests substantial nightly movements are often required to detect this irregularly-distributed food source. Other foods in the diet include grass roots and tubers, lilies, herbs, and sedges. The northern bettong appears to breed all year round, and like other relatives of the kangaroos, the joey is carried in a pouch until it is old enough to follow the mother as a ‘young-at-foot’.The northern bettong is an endangered animal, and only populates three regions of Queensland, Australia, Davies Creek, Emu Creek and Tinaroo Creek all of which are within 80 miles of each other.
Other animals of the family Potoroidae
Northern bettong is a member of the Potoroidae, as are these animals:
- Long-footed potoroo with 1 babies per pregnancy
- Long-nosed potoroo with 1 babies per pregnancy
- Musky rat-kangaroo with 2 babies per pregnancy
- Desert rat-kangaroo with 1 babies per pregnancy
- Woylie with 1 babies per pregnancy
- Rufous rat-kangaroo with 1 babies per pregnancy
- Boodie with 1 babies per pregnancy
- Broad-faced potoroo weighting only 499 grams
- Gilbert’s potoroo with 1 babies per pregnancy
- Eastern bettong with 1 babies per pregnancy
Animals that share a litter size with Northern bettong
Those animals also give birth to 1 babies at once:
- Rüppell’s pipistrelle
- Dormer’s bat
- Rafinesque’s big-eared bat
- Dwarf hutia
- Fallow deer
- Alpine musk deer
- Humboldt’s white-fronted capuchin
- Ground cuscus
- Common thick-thumbed bat
- Soemmerring’s gazelle
Animals that get as old as a Northern bettong
Other animals that usually reach the age of 7 years:
- Woodland dormouse with 5.75 years
- Bahamian hutia with 6 years
- Mexican mouse opossum with 7 years
- Florida mouse with 7.33 years
- Plains pocket gopher with 7.17 years
- Canyon bat with 6 years
- Doria’s tree-kangaroo with 8 years
- Crest-tailed mulgara with 7 years
- Numbat with 6 years
- Red-tailed chipmunk with 8 years
Animals with the same weight as a Northern bettong
What other animals weight around 1.26 kg (2.77 lbs)?
- Banded mongoose usually reaching 1.26 kgs (2.78 lbs)
- Indian grey mongoose usually reaching 1.3 kgs (2.87 lbs)
- Emin’s pouched rat usually reaching 1.28 kgs (2.82 lbs)
- Bengal slow loris usually reaching 1.14 kgs (2.51 lbs)
- Back-striped weasel usually reaching 1.5 kgs (3.31 lbs)
- Red and white giant flying squirrel usually reaching 1.5 kgs (3.31 lbs)
- Western quoll usually reaching 1.12 kgs (2.47 lbs)
- Rothschild’s cuscus usually reaching 1.37 kgs (3.02 lbs)
- Haussa genet usually reaching 1.4 kgs (3.09 lbs)
- White-eared opossum usually reaching 1.03 kgs (2.27 lbs)