Litter Size

How many babies does a Mexican harvest mouse have at once? (litter size)

How many baby Mexican harvest mouses are in a litter?

A Mexican harvest mouse (Reithrodontomys mexicanus) usually gives birth to around 2 babies.

Upon birth, they weight 1 grams (0 lbs) and measure 4.2 cm (0′ 2″). They are a member of the Muridae family (genus: Reithrodontomys). An adult Mexican harvest mouse grows up to a size of 6.9 cm (0′ 3″).

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 Mexican harvest mouse (Reithrodontomys mexicanus) is a species of rodent in the family Cricetidae. It is found in Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, and Panama in a variety of habitats at altitudes from sea level to 3800 m.

Other animals of the family Muridae

Mexican harvest mouse is a member of the Muridae, as are these animals:

Animals that share a litter size with Mexican harvest mouse

Those animals also give birth to 2 babies at once:

Animals with the same weight as a Mexican harvest mouse

What other animals weight around 15 grams (0.03 lbs)?