How many baby Yellow-nosed cotton rats are in a litter?
A Yellow-nosed cotton rat (Sigmodon ochrognathus) usually gives birth to around 3 babies.
Each of those little ones spend around 34 days as a fetus before they are released into the wild. Upon birth, they weight 5 grams (0.01 lbs) and measure 1.6 cm (0′ 1″). They are a member of the Muridae family (genus: Sigmodon). An adult Yellow-nosed cotton rat grows up to a size of 15.1 cm (0′ 6″).
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 yellow-nosed cotton rat (Sigmodon ochrognathus) is a species of rodent in the family Cricetidae. It is native to Mexico and to the states of Arizona, New Mexico, and Texas in the United States, where it inhabits mountain grassland, scrub, and pinyon-juniper woodland. It is common over much of its wide range and the IUCN considers it to be of “least concern”.
Other animals of the family Muridae
Yellow-nosed cotton rat is a member of the Muridae, as are these animals:
- Taczanowski’s Oldfield mouse weighting only 77 grams
- Oligoryzomys fulvescens with 3 babies per pregnancy
- Mindoro striped rat weighting only 152 grams
- Maximowicz’s vole with 6 babies per pregnancy
- Bibimys chacoensis weighting only 28 grams
- Oldfield white-bellied rat weighting only 81 grams
- Silky Oldfield mouse weighting only 115 grams
- Olive montane mouse weighting only 37 grams
- Roraima mouse weighting only 33 grams
- Sula rat weighting only 131 grams
Animals that share a litter size with Yellow-nosed cotton rat
Those animals also give birth to 3 babies at once:
- Red-nosed mouse
- South American coati
- Brush mouse
- Capybara
- Irenomys
- Bengal fox
- Flat-headed shrew
- Chestnut climbing mouse
- European badger
- Thick-tailed three-toed jerboa
Animals with the same weight as a Yellow-nosed cotton rat
What other animals weight around 122 grams (0.27 lbs)?
- Long-haired rousette weighting 104 grams
- Talas tuco-tuco weighting 141 grams
- Broad-toothed mouse weighting 125 grams
- Crest-tailed mulgara weighting 100 grams
- Isarog striped shrew-rat weighting 140 grams
- Yellow-haired hill rat weighting 111 grams
- Bramble Cay melomys weighting 100 grams
- Dusky spiny tree-rat weighting 108 grams
- Silky Oldfield mouse weighting 115 grams
- African groove-toothed rat weighting 111 grams
Animals with the same size as a Yellow-nosed cotton rat
Also reaching around 15.1 cm (0′ 6″) in size do these animals:
- Amazon weasel gets as big as 15.5 cm (0′ 7″)
- Dibbler gets as big as 14.2 cm (0′ 6″)
- Small Japanese mole gets as big as 14 cm (0′ 6″)
- Lesser hamster-rat gets as big as 14.9 cm (0′ 6″)
- Lodgepole chipmunk gets as big as 12.5 cm (0′ 5″)
- Four-toed hedgehog gets as big as 15.9 cm (0′ 7″)
- Paraguayan fat-tailed mouse opossum gets as big as 12.7 cm (0′ 5″)
- Halmahera naked-backed fruit bat gets as big as 17.8 cm (0′ 8″)
- Stuhlmann’s golden mole gets as big as 12.9 cm (0′ 6″)
- Talazac’s shrew tenrec gets as big as 15 cm (0′ 6″)