How many baby Tawny-bellied cotton rats are in a litter?
A Tawny-bellied cotton rat (Sigmodon fulviventer) usually gives birth to around 7 babies.
Each of those little ones spend around 36 days as a fetus before they are released into the wild. Upon birth, they weight 15 kg (33.07 lbs) and measure 1.6 cm (0′ 1″). They are a member of the Muridae family (genus: Sigmodon). An adult Tawny-bellied cotton rat grows up to a size of 18 cm (0′ 8″).
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 tawny-bellied cotton rat (Sigmodon fulviventer) is a species of rodent in the family Cricetidae. It is found in Mexico and in the US states of Arizona and New Mexico.
Other animals of the family Muridae
Tawny-bellied cotton rat is a member of the Muridae, as are these animals:
- Maxomys baeodon weighting only 159 grams
- Four-striped grass mouse with 5 babies per pregnancy
- Western pebble-mound mouse weighting only 10 grams
- Tropical vlei rat with 1 babies per pregnancy
- Mozambique thicket rat with 2 babies per pregnancy
- Lesser mole-rat with 3 babies per pregnancy
- African wading rat with 2 babies per pregnancy
- Pygmy rock mouse with 2 babies per pregnancy
- Southern multimammate mouse with 7 babies per pregnancy
- Gracile tateril with 4 babies per pregnancy
Animals that share a litter size with Tawny-bellied cotton rat
Those animals also give birth to 7 babies at once:
- Little long-tailed dunnart
- Mediterranean water shrew
- Red-cheeked ground squirrel
- Gray short-tailed opossum
- Arctic fox
- Linnaeus’s mouse opossum
- Fat-tailed dunnart
- Lesser bandicoot rat
- Laxmann’s shrew
- Stripe-faced dunnart
Animals with the same weight as a Tawny-bellied cotton rat
What other animals weight around 196 grams (0.43 lbs)?
- Soft-spined Atlantic spiny rat weighting 168 grams
- Four-toed elephant shrew weighting 201 grams
- Tamaulipan woodrat weighting 198 grams
- Island mouse weighting 164 grams
- Lesser mole-rat weighting 188 grams
- Hairless bat weighting 169 grams
- Beaufort’s naked-backed fruit bat weighting 165 grams
- Southwestern water vole weighting 220 grams
- Holochilus chacarius weighting 204 grams
- Reddish tuco-tuco weighting 173 grams
Animals with the same size as a Tawny-bellied cotton rat
Also reaching around 18 cm (0′ 8″) in size do these animals:
- Indian hedgehog gets as big as 18 cm (0′ 8″)
- Bushy-tailed opossum gets as big as 17.6 cm (0′ 7″)
- Mount Data shrew-rat gets as big as 20.1 cm (0′ 8″)
- Baird’s pocket gopher gets as big as 15 cm (0′ 6″)
- Borneo black-banded squirrel gets as big as 20.3 cm (0′ 8″)
- Alpine pika gets as big as 17.5 cm (0′ 7″)
- Bridges’s degu gets as big as 15.9 cm (0′ 7″)
- Vordermann’s flying squirrel gets as big as 14.8 cm (0′ 6″)
- Palawan treeshrew gets as big as 18.5 cm (0′ 8″)
- Collared pika gets as big as 18.8 cm (0′ 8″)