How many baby California mouses are in a litter?
A California mouse (Peromyscus californicus) usually gives birth to around 1 babies.With 4 litters per year, that sums up to a yearly offspring of 4 babies.
Each of those little ones spend around 32 days as a fetus before they are released into the wild. Upon birth, they weight 4 grams (0.01 lbs) and measure 1.3 cm (0′ 1″). They are a member of the Muridae family (genus: Peromyscus). An adult California mouse grows up to a size of 11.6 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 California mouse (Peromyscus californicus) is a species of rodent in the subfamily Neotominae in the family Cricetidae. It is the only species in the Peromyscus californicus species group. It is found in northwestern Mexico and central to southern California. It is the largest Peromyscus species in the United States.While most rodents are polygamous, the California mouse is monogamous and forms pair bonds, making it a model organism for researchers studying the genetics and neurobiology of partner fidelity and paternal care.
Other animals of the family Muridae
California mouse is a member of the Muridae, as are these animals:
- Tropical vlei rat with 1 babies per pregnancy
- Short-nosed harvest mouse with 3 babies per pregnancy
- Guinea multimammate mouse with 11 babies per pregnancy
- Four-striped grass mouse with 5 babies per pregnancy
- Buff-bellied climbing mouse weighting only 89 grams
- Günther’s vole with 6 babies per pregnancy
- Eversmann’s hamster with 5 babies per pregnancy
- Bolam’s mouse weighting only 15 grams
- Emin’s pouched rat weighting around 1.28 kilograms (2.82 lbs)
- Sloggett’s vlei rat with 1 babies per pregnancy
Animals that share a litter size with California mouse
Those animals also give birth to 1 babies at once:
- De Brazza’s monkey
- Wall-roosting mouse-eared bat
- Four-horned antelope
- Common minke whale
- Red-fronted gazelle
- Southern reedbuck
- Unadorned rock-wallaby
- Insular flying fox
- Gray snub-nosed monkey
- D’Albertis’ ringtail possum
Animals with the same weight as a California mouse
What other animals weight around 42 grams (0.09 lbs)?
- Jico deer mouse weighting 40 grams
- Zempoaltépec vole weighting 42 grams
- Cape golden mole weighting 39 grams
- Shortridge’s multimammate mouse weighting 46 grams
- Hooper’s mouse weighting 35 grams
- Oyapock’s fish-eating rat weighting 47 grams
- Gracile tateril weighting 49 grams
- Moss-forest rat weighting 46 grams
- Luzon montane forest mouse weighting 34 grams
- Black-tailed dasyure weighting 38 grams
Animals with the same size as a California mouse
Also reaching around 11.6 cm (0′ 5″) in size do these animals:
- Rossel Island melomys gets as big as 13.9 cm (0′ 6″)
- Eastern chestnut mouse gets as big as 10.9 cm (0′ 5″)
- Northern red-backed vole gets as big as 10.9 cm (0′ 5″)
- Shaw Mayer’s water rat gets as big as 13.1 cm (0′ 6″)
- Papua grassland mosaic-tailed rat gets as big as 10.4 cm (0′ 5″)
- Hylaeamys megacephalus gets as big as 12.2 cm (0′ 5″)
- Greater spear-nosed bat gets as big as 10.7 cm (0′ 5″)
- Zempoaltépec vole gets as big as 11.8 cm (0′ 5″)
- Big-eared woolly bat gets as big as 10.3 cm (0′ 5″)
- Osgood’s short-tailed opossum gets as big as 9.5 cm (0′ 4″)