How many baby Northern grass mouses are in a litter?
A Northern grass mouse (Necromys urichi) usually gives birth to around 5 babies.With 3 litters per year, that sums up to a yearly offspring of 15 babies.
Upon birth, they weight 3 grams (0.01 lbs) and measure 6 cm (0′ 3″). They are a member of the Cricetidae family (genus: Necromys). An adult Northern grass mouse grows up to a size of 10.8 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 northern grass mouse, or northern akodont, (Necromys urichi) is a species of rodent in the family Cricetidae. It is found in Brazil, Colombia, Venezuela and Trinidad and Tobago.
Other animals of the family Cricetidae
Northern grass mouse is a member of the Cricetidae, as are these animals:
- Abrothrix jelskii weighting only 34 grams
- North American brown lemming with 6 babies per pregnancy
- Northern red-backed vole with 5 babies per pregnancy
- Blyth’s vole with 1 babies per pregnancy
- Hylaeamys laticeps weighting only 49 grams
- Middendorf’s vole with 5 babies per pregnancy
- Aegialomys xanthaeolus weighting only 79 grams
- Montane grass mouse raching a size of 7.5 cm (0′ 3″)
- White-tipped Oldfield mouse raching a size of 11.4 cm (0′ 5″)
- Buenos Aires leaf-eared mouse weighting only 42 grams
Animals that share a litter size with Northern grass mouse
Those animals also give birth to 5 babies at once:
- Montane vole
- Kellen’s dormouse
- Wongai ningaui
- Fringe-tailed gerbil
- Long-tailed shrew
- Crowned shrew
- Smoky shrew
- Lowland streaked tenrec
- Tristram’s jird
- American pygmy shrew
Animals with the same weight as a Northern grass mouse
What other animals weight around 44 grams (0.1 lbs)?
- Northern hopping mouse weighting 38 grams
- Grey red-backed vole weighting 36 grams
- Cuban fruit-eating bat weighting 37 grams
- Djoongari weighting 43 grams
- Edith’s leaf-eared mouse weighting 40 grams
- Buenos Aires leaf-eared mouse weighting 42 grams
- Handleyomys fuscatus weighting 49 grams
- Dorothy’s slender opossum weighting 37 grams
- Rupp’s mouse weighting 48 grams
- Greater Asiatic yellow bat weighting 36 grams