How many baby San Joaquin pocket mouses are in a litter?
A San Joaquin pocket mouse (Perognathus inornatus) usually gives birth to around 4 babies.With 2 litters per year, that sums up to a yearly offspring of 8 babies.
Upon birth, they weight 37 grams (0.08 lbs) and measure 1.3 cm (0′ 1″). They are a member of the Heteromyidae family (genus: Perognathus). An adult San Joaquin pocket mouse grows up to a size of 7.2 cm (0′ 3″).
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 San Joaquin pocket mouse or Salinas pocket mouse (Perognathus inornatus) is a species of rodent in the family Heteromyidae. It is endemic to California in the United States where it lives in desert and semi-desert habitats.
Other animals of the family Heteromyidae
San Joaquin pocket mouse is a member of the Heteromyidae, as are these animals:
- Narrow-faced kangaroo rat with 1 babies per pregnancy
- Merriam’s pocket mouse with 4 babies per pregnancy
- Mountain spiny pocket mouse with 3 babies per pregnancy
- Phillips’s kangaroo rat with 2 babies per pregnancy
- Desert pocket mouse with 2 babies per pregnancy
- Rock pocket mouse with 3 babies per pregnancy
- Long-tailed pocket mouse with 5 babies per pregnancy
- Nelson’s kangaroo rat with 1 babies per pregnancy
- San Diego pocket mouse with 3 babies per pregnancy
- Goldman’s spiny pocket mouse weighting only 85 grams
Animals that share a litter size with San Joaquin pocket mouse
Those animals also give birth to 4 babies at once:
- Wolf
- Lesser Egyptian gerbil
- Sundevall’s jird
- African groove-toothed rat
- Peromyscus maniculatus
- Woolly dormouse
- Pallas’s cat
- Desert pocket gopher
- Red-cheeked dunnart
- Woodland jumping mouse
Animals with the same weight as a San Joaquin pocket mouse
What other animals weight around 10 grams (0.02 lbs)?
- Jouvenet’s shrew weighting 9 grams
- Bidentate yellow-eared bat weighting 11 grams
- Pallid large-footed myotis weighting 12 grams
- Dwarf little fruit bat weighting 9 grams
- Luzon shrew weighting 10 grams
- Hairy big-eared bat weighting 12 grams
- Taiga shrew weighting 12 grams
- Pilliga mouse weighting 10 grams
- Northern leaf-nosed bat weighting 12 grams
- Andean small-eared shrew weighting 11 grams
Animals with the same size as a San Joaquin pocket mouse
Also reaching around 7.2 cm (0′ 3″) in size do these animals:
- Lowe’s shrew gets as big as 7 cm (0′ 3″)
- Northern pygmy mouse gets as big as 6.4 cm (0′ 3″)
- Large slit-faced bat gets as big as 7.5 cm (0′ 3″)
- Siberian large-toothed shrew gets as big as 7.1 cm (0′ 3″)
- Lined pocket mouse gets as big as 7.3 cm (0′ 3″)
- Greater white-toothed shrew gets as big as 6.9 cm (0′ 3″)
- Cuban flower bat gets as big as 6.3 cm (0′ 3″)
- Usambara shrew gets as big as 7.9 cm (0′ 4″)
- Jamaican flower bat gets as big as 7 cm (0′ 3″)
- Drouhard’s shrew tenrec gets as big as 7.3 cm (0′ 3″)