How many baby Red tree voles are in a litter?
A Red tree vole (Arborimus longicaudus) usually gives birth to around 2 babies.
Each of those little ones spend around 30 days as a fetus before they are released into the wild. Upon birth, they weight 2 grams (0 lbs) and measure 3.7 cm (0′ 2″). They are a member of the Muridae family (genus: Arborimus). An adult Red tree vole grows up to a size of 10.3 cm (0′ 5″).
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 red tree vole (Arborimus longicaudus) is a rodent of the Pacific Northwest, found in Oregon and California.
Other animals of the family Muridae
Red tree vole is a member of the Muridae, as are these animals:
- Polynesian rat with 3 babies per pregnancy
- Fawn hopping mouse with 2 babies per pregnancy
- Zacatecan deer mouse with 3 babies per pregnancy
- Gorongoza gerbil weighting only 119 grams
- Mongolian hamster with 5 babies per pregnancy
- Andean big-eared mouse weighting only 38 grams
- Bush vlei rat with 1 babies per pregnancy
- Oligoryzomys andinus weighting only 25 grams
- Lataste’s gerbil with 4 babies per pregnancy
- Hairy-eared cerrado mouse weighting only 24 grams
Animals that share a litter size with Red tree vole
Those animals also give birth to 2 babies at once:
- Yellow-spotted brush-furred rat
- Sandy inland mouse
- Cape short-eared gerbil
- Panamint kangaroo rat
- White-sided jackrabbit
- Crab-eating raccoon
- Sumichrast’s vesper rat
- Hinde’s rock rat
- Southern pig-footed bandicoot
- Deppe’s squirrel
Animals with the same weight as a Red tree vole
What other animals weight around 22 grams (0.05 lbs)?
- Andean vesper mouse weighting 20 grams
- Indomalayan pencil-tailed tree mouse weighting 23 grams
- Japanese mountain mole weighting 25 grams
- Hairy big-eyed bat weighting 23 grams
- Veldkamp’s dwarf epauletted fruit bat weighting 21 grams
- Western red-backed vole weighting 18 grams
- California pocket mouse weighting 23 grams
- Akodon budini weighting 26 grams
- Indian hairy-footed gerbil weighting 26 grams
- Egyptian tomb bat weighting 24 grams
Animals with the same size as a Red tree vole
Also reaching around 10.3 cm (0′ 5″) in size do these animals:
- Western heather vole gets as big as 10.7 cm (0′ 5″)
- Gould’s mouse gets as big as 10.8 cm (0′ 5″)
- Madagascan flying fox gets as big as 8.4 cm (0′ 4″)
- Western rock elephant shrew gets as big as 12.2 cm (0′ 5″)
- Aegialomys galapagoensis gets as big as 11.2 cm (0′ 5″)
- Northern gracile opossum gets as big as 9.9 cm (0′ 4″)
- Greater forest shrew gets as big as 8.3 cm (0′ 4″)
- Djoongari gets as big as 10.6 cm (0′ 5″)
- Peromyscus maniculatus gets as big as 9.5 cm (0′ 4″)
- Western red-backed vole gets as big as 9.8 cm (0′ 4″)