How many baby Cactus mouses are in a litter?
A Cactus mouse (Peromyscus eremicus) usually gives birth to around 2 babies.With 3 litters per year, that sums up to a yearly offspring of 6 babies.
Each of those little ones spend around 27 days as a fetus before they are released into the wild. Upon birth, they weight 2 grams (0 lbs) and measure 1.3 cm (0′ 1″). They are a member of the Muridae family (genus: Peromyscus). An adult Cactus mouse grows up to a size of 9.1 cm (0′ 4″).
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 cactus mouse (Peromyscus eremicus) is a species of rodent in the family Cricetidae. It is one species of a closely related group of common mice often called deer mice. Cactus mice are small, between 18 and 40 g in weight. Females weigh slightly more than males and are significantly larger in body length, ear length, length of mandible, and bullar width of skull. Cactus mice can be identified by having naked soles on their hind feet and almost naked tails, which are usually the same length or longer than the animals’ body length. Their ears are nearly hairless, large, and membranous. Their fur is long and soft; coloration varies between subspecies and between different populations. Color of fur varies from ochre to cinnamon, with white ventral areas, and the sides and top of head slightly grayish. Females tend to be slightly paler in color than males, while juveniles appear more gray than their parents.
Other animals of the family Muridae
Cactus mouse is a member of the Muridae, as are these animals:
- Arizona woodrat weighting only 200 grams
- Aegialomys galapagoensis becoming 1.67 years old
- Verreaux’s mouse weighting only 41 grams
- Shaw’s jird with 5 babies per pregnancy
- Montane wood mouse with 4 babies per pregnancy
- Western pebble-mound mouse weighting only 10 grams
- Malayan mountain spiny rat with 2 babies per pregnancy
- Chibchan water mouse weighting only 50 grams
- Dusky-footed woodrat with 2 babies per pregnancy
- Cauca climbing mouse weighting only 89 grams
Animals that share a litter size with Cactus mouse
Those animals also give birth to 2 babies at once:
- Moncton’s mosaic-tailed rat
- Reindeer
- Mexican harvest mouse
- Dobson’s shrew tenrec
- Van Deusen’s rat
- Guaira spiny rat
- Cape porcupine
- Pampas cat
- Kimberley rock rat
- Spotted linsang
Animals with the same weight as a Cactus mouse
What other animals weight around 22 grams (0.05 lbs)?
- Indian hairy-footed gerbil weighting 26 grams
- Oligoryzomys flavescens weighting 21 grams
- Parnell’s mustached bat weighting 19 grams
- Oligoryzomys griseolus weighting 25 grams
- Bogotá yellow-shouldered bat weighting 19 grams
- Cozumel harvest mouse weighting 20 grams
- Lesser false vampire bat weighting 24 grams
- Southern long-nosed bat weighting 25 grams
- Highland yellow-shouldered bat weighting 21 grams
- Common vole weighting 26 grams
Animals with the same size as a Cactus mouse
Also reaching around 9.1 cm (0′ 4″) in size do these animals:
- Bailey’s pocket mouse gets as big as 9.4 cm (0′ 4″)
- Robert’s hocicudo gets as big as 10 cm (0′ 4″)
- Forrest’s mouse gets as big as 8.4 cm (0′ 4″)
- Southern red-backed vole gets as big as 10.1 cm (0′ 4″)
- Triaenops rufus gets as big as 8.7 cm (0′ 4″)
- Nicobar shrew gets as big as 10 cm (0′ 4″)
- Swift fruit bat gets as big as 10.4 cm (0′ 5″)
- Four-toed rice tenrec gets as big as 10.7 cm (0′ 5″)
- Sandy inland mouse gets as big as 8.2 cm (0′ 4″)
- Meadow jumping mouse gets as big as 8.6 cm (0′ 4″)