How big does a Mexican deer mouse get? Here is an overview over the average adult age:
A grown Mexican deer mouse (Peromyscus mexicanus) reaches an average size of 12.4 cm (0′ 5″).
When born, they have an average size of 0 cm (0′ 0″). A full-grown exemplary reaches roughly 42 grams (0.09 lbs). On birth they have a weight of 4 grams (0.01 lbs). Talking about reproduction, Mexican deer mouses have 2 babies about 7 times per year. The Mexican deer mouse (genus: Peromyscus) is a member of the family Muridae.
As a reference: Humans reach an average body size of 1.65m (5′ 5″) while carrying 62 kg (137 lbs). A human woman is pregnant for 280 days (40 weeks) and on average become 75 years old.
The Mexican deer mouse (Peromyscus mexicanus) is a species of forest-dwelling rodent in the family Cricetidae. It is found in southern Mexico and throughout much of Central America.
Animals of the same family as a Mexican deer mouse
We found other animals of the Muridae family:
- New Holland mouse with a size of 8.2 cm (0′ 4″)
 - Guatemalan deer mouse with 1 babies per litter
 - Broad-toothed mouse with a size of 16.6 cm (0′ 7″)
 - Arianus’s rat with a size of 13.2 cm (0′ 6″)
 - Oyapock’s fish-eating rat with a weight of 47 grams
 - Deroo’s mouse with 3 babies per litter
 - Krebs’s fat mouse with 4 babies per litter
 - Luzon short-nosed rat with a size of 15.2 cm (0′ 6″)
 - Flat-haired mouse with 6 babies per litter
 - Oligoryzomys nigripes with a size of 6.1 cm (0′ 3″)
 
Animals with the same size as a Mexican deer mouse
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Mexican deer mouse:
- Southern red-backed vole with a size of 10.1 cm (0′ 4″)
 - Eastern chipmunk with a size of 14.6 cm (0′ 6″)
 - Aegialomys galapagoensis with a size of 11.2 cm (0′ 5″)
 - Long-nosed dasyure with a size of 12.2 cm (0′ 5″)
 - Voalavoanala with a size of 14.2 cm (0′ 6″)
 - Glacier rat with a size of 12.4 cm (0′ 5″)
 - Visagie’s golden mole with a size of 10.6 cm (0′ 5″)
 - Taiwan vole with a size of 12.4 cm (0′ 5″)
 - Pousargues African fat mouse with a size of 11.6 cm (0′ 5″)
 - Bramble Cay melomys with a size of 14.7 cm (0′ 6″)
 
Animals with the same litter size as a Mexican deer mouse
Here is a list of animals that have the same number of babies per litter (2) as a Mexican deer mouse:
- Mountain mosaic-tailed rat
 - Serval
 - Striped hyena
 - Chacoan peccary
 - Big deer mouse
 - Golden-headed lion tamarin
 - African yellow bat
 - Soft-spined Atlantic spiny rat
 - Babault’s mouse shrew
 - Papua grassland mosaic-tailed rat
 
Animals with the same weight as a Mexican deer mouse
As a comparison, here are some other animals that weight as much as the Peromyscus mexicanus:
- Natal multimammate mouse bringing 49 grams to the scale
 - Mountain pygmy possum bringing 44 grams to the scale
 - Oecomys bicolor bringing 37 grams to the scale
 - Small Luzon forest mouse bringing 35 grams to the scale
 - Mole-like rice tenrec bringing 39 grams to the scale
 - Hairy-tailed bolo mouse bringing 39 grams to the scale
 - Chihuahuan mouse bringing 40 grams to the scale
 - Mountain tube-nosed fruit bat bringing 43 grams to the scale
 - Aratathomas’s yellow-shouldered bat bringing 49 grams to the scale
 - Osgood’s leaf-eared mouse bringing 45 grams to the scale
 
