How many baby Brush-tailed rock-wallabys are in a litter?
A Brush-tailed rock-wallaby (Petrogale penicillata) usually gives birth to around 1 babies.
Each of those little ones spend around 30 days as a fetus before they are released into the wild. Upon birth, they weight 30 grams (0.07 lbs) and measure 9.2 cm (0′ 4″). They are a member of the Macropodidae family (genus: Petrogale). An adult Brush-tailed rock-wallaby grows up to a size of 19.2 cm (0′ 8″).
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 brush-tailed rock-wallaby or small-eared rock-wallaby (Petrogale penicillata) is a kind of wallaby, one of several rock-wallabies in the genus Petrogale. It inhabits rock piles and cliff lines along the Great Dividing Range from about 100 km north-west of Brisbane to northern Victoria, in vegetation ranging from rainforest to dry sclerophyl forests. Populations have declined seriously in the south and west of its range, but it remains locally common in northern New South Wales and southern Queensland. However due to the large bushfire event currently occurring in South-East Australia around 70% of all the wallaby’s habitat has been lost as of January 2020.
Other animals of the family Macropodidae
Brush-tailed rock-wallaby is a member of the Macropodidae, as are these animals:
- Lumholtz’s tree-kangaroo with 1 babies per pregnancy
- Rufous hare-wallaby with 1 babies per pregnancy
- Goodfellow’s tree-kangaroo with 1 babies per pregnancy
- Short-eared rock-wallaby with 1 babies per pregnancy
- Eastern hare-wallaby with 1 babies per pregnancy
- Black wallaroo with 1 babies per pregnancy
- Common wallaroo with 1 babies per pregnancy
- Doria’s tree-kangaroo with 1 babies per pregnancy
- Eastern grey kangaroo with 1 babies per pregnancy
- Toolache wallaby with 1 babies per pregnancy
Animals that share a litter size with Brush-tailed rock-wallaby
Those animals also give birth to 1 babies at once:
- Rufous soft-furred spiny rat
- Wroughton’s free-tailed bat
- Greater Asiatic yellow bat
- White-striped dorcopsis
- Least horseshoe bat
- Baird’s tapir
- Dwarf sperm whale
- Lorentz’s mosaic-tailed rat
- Gray-bellied night monkey
- Mantled howler
Animals that get as old as a Brush-tailed rock-wallaby
Other animals that usually reach the age of 14.33 years:
- Weyns’s duiker with 15.25 years
- Nubian ibex with 17 years
- Seba’s short-tailed bat with 12.33 years
- Blue duiker with 12 years
- American red squirrel with 12 years
- Long-tailed goral with 13.17 years
- European hare with 12 years
- Pampas fox with 13.67 years
- Common brushtail possum with 14.67 years
- Northern flying squirrel with 13 years
Animals with the same weight as a Brush-tailed rock-wallaby
What other animals weight around 6.94 kg (15.3 lbs)?
- Black-crested Sumatran langur usually reaching 6.45 kgs (14.22 lbs)
- American badger usually reaching 7.84 kgs (17.28 lbs)
- Bobcat usually reaching 6.38 kgs (14.07 lbs)
- North American porcupine usually reaching 7.42 kgs (16.36 lbs)
- Thomas’s langur usually reaching 6.69 kgs (14.75 lbs)
- Yellow-tailed woolly monkey usually reaching 8.27 kgs (18.23 lbs)
- White-fronted surili usually reaching 6.12 kgs (13.49 lbs)
- Peruvian spider monkey usually reaching 7.09 kgs (15.63 lbs)
- Black crested mangabey usually reaching 6.51 kgs (14.35 lbs)
- Mentawai langur usually reaching 6.45 kgs (14.22 lbs)