How many baby Mexican spiny pocket mouses are in a litter?
A Mexican spiny pocket mouse (Liomys irroratus) usually gives birth to around 4 babies.
Upon birth, they weight 90 grams (0.2 lbs) and measure 15.6 cm (0′ 7″). They are a member of the Heteromyidae family (genus: Liomys). An adult Mexican spiny pocket mouse grows up to a size of 11.5 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 Mexican spiny pocket mouse (Heteromys irroratus) is a species of rodent in the family Heteromyidae. It is native to Mexico and Texas in the United States where it is found in dry, scrubby habitats. The IUCN has assessed it as being of “least concern”. It was formerly placed in the genus Liomys, which is now recognized to be paraphyletic and has been subsumed into Heteromys.
Other animals of the family Heteromyidae
Mexican spiny pocket mouse is a member of the Heteromyidae, as are these animals:
- Giant kangaroo rat with 4 babies per pregnancy
- Great Basin pocket mouse weighting only 24 grams
- Silky pocket mouse with 3 babies per pregnancy
- Banner-tailed kangaroo rat with 2 babies per pregnancy
- Margarita Island kangaroo rat raching a size of 9.4 cm (0′ 4″)
- Stephens’s kangaroo rat with 2 babies per pregnancy
- San Quintin kangaroo rat weighting only 84 grams
- Southern spiny pocket mouse with 2 babies per pregnancy
- Gulf Coast kangaroo rat with 1 babies per pregnancy
- Desert pocket mouse with 2 babies per pregnancy
Animals that share a litter size with Mexican spiny pocket mouse
Those animals also give birth to 4 babies at once:
- California pocket mouse
- Large Japanese field mouse
- Northern pika
- Japanese grass vole
- Tien Shan birch mouse
- Mexican prairie dog
- Madras treeshrew
- Alpine marmot
- Australian swamp rat
- Greater hamster-rat
Animals with the same weight as a Mexican spiny pocket mouse
What other animals weight around 49 grams (0.11 lbs)?
- Fat-tailed gerbil weighting 47 grams
- Alexander’s bush squirrel weighting 50 grams
- Champion’s tree mouse weighting 50 grams
- Shining thicket rat weighting 50 grams
- Grayish mouse opossum weighting 47 grams
- Handleyomys melanotis weighting 50 grams
- Feather-tailed possum weighting 53 grams
- Miller’s striped mouse weighting 49 grams
- Brock’s yellow-eared bat weighting 48 grams
- Grant’s rock mouse weighting 40 grams
Animals with the same size as a Mexican spiny pocket mouse
Also reaching around 11.5 cm (0′ 5″) in size do these animals:
- Yellow-pine chipmunk gets as big as 12 cm (0′ 5″)
- Yellow-rumped leaf-eared mouse gets as big as 12.1 cm (0′ 5″)
- Meadow vole gets as big as 11.8 cm (0′ 5″)
- Duthie’s golden mole gets as big as 10 cm (0′ 4″)
- Taiwan vole gets as big as 12.3 cm (0′ 5″)
- Cameroon soft-furred mouse gets as big as 11.5 cm (0′ 5″)
- Linnaeus’s mouse opossum gets as big as 12 cm (0′ 5″)
- Sandstone false antechinus gets as big as 9.6 cm (0′ 4″)
- Buller’s chipmunk gets as big as 13.6 cm (0′ 6″)
- Southern marsupial mole gets as big as 13.4 cm (0′ 6″)