Litter Size

How many babies does a Gray-tailed vole have at once? (litter size)

How many baby Gray-tailed voles are in a litter?

A Gray-tailed vole (Microtus canicaudus) usually gives birth to around 4 babies.

Each of those little ones spend around 23 days as a fetus before they are released into the wild. 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 Gray-tailed vole grows up to a size of 11 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 average litter size of a Gray-tailed vole is 4

The gray-tailed vole (Microtus canicaudus) also known as the gray-tailed meadow vole or gray-tailed meadow mouse, is a rodent in the genus Microtus (small-eared “meadow voles”) of the family Cricetidae. Voles are small mammals, and this species lies roughly in the middle of their size range. First collected in 1895, it is endemic to the Willamette Valley, Oregon, and Clark County, Washington, in the Pacific Northwest region of North America. Historically, they were found in the prairie areas of the Valley and, though many of these areas have been converted for agricultural purposes, these animals remain common. For reasons that remain unclear, vole population densities in any area may fluctuate widely from season to season and year to year. They are preyed upon by owls, hawks, and carnivorous mammals, and their parasites include fleas and ticks. These voles build burrows and complex tunnel networks, which they sometimes share with other burrowing animals. Relatively little is known about their behavior in the wild, because they are elusive and unlikely to enter traps.

Other animals of the family Muridae

Gray-tailed vole is a member of the Muridae, as are these animals:

Animals that share a litter size with Gray-tailed vole

Those animals also give birth to 4 babies at once:

Animals with the same weight as a Gray-tailed vole

What other animals weight around 29 grams (0.06 lbs)?

Animals with the same size as a Gray-tailed vole

Also reaching around 11 cm (0′ 5″) in size do these animals: