How many baby Narrow-headed voles are in a litter?
A Narrow-headed vole (Microtus gregalis) usually gives birth to around 8 babies.With 2 litters per year, that sums up to a yearly offspring of 16 babies.
Upon birth, they weight 2 grams (0 lbs) and measure 1.8 cm (0′ 1″). They are a member of the Muridae family (genus: Microtus). An adult Narrow-headed vole grows up to a size of 10.7 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 narrow-headed vole (Microtus gregalis) is a species of rodent in the family Cricetidae. Ranging over northern and central Asia and also into Alaska, it is the only species in the subgenus Stenocranius.
Other animals of the family Muridae
Narrow-headed vole is a member of the Muridae, as are these animals:
- Chestnut-bellied spiny rat weighting only 159 grams
- New Guinean jumping mouse with 2 babies per pregnancy
- Luzon montane forest mouse weighting only 34 grams
- European pine vole with 2 babies per pregnancy
- Edward’s swamp rat with 2 babies per pregnancy
- Thespian grass mouse weighting only 24 grams
- Blyth’s vole with 1 babies per pregnancy
- Rhoads’s Oldfield mouse weighting only 77 grams
- New Britain water rat raching a size of 29.2 cm (1′ 0″)
- Atlantic Forest climbing mouse with 3 babies per pregnancy
Animals that share a litter size with Narrow-headed vole
Those animals also give birth to 8 babies at once: