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:
- Day’s grass mouse weighting only 32 grams
- Peterson’s chinchilla mouse weighting only 83 grams
- Oligoryzomys longicaudatus with 4 babies per pregnancy
- Silky Oldfield mouse weighting only 115 grams
- Kalinowski’s Oldfield mouse weighting only 77 grams
- Yellow-bellied climbing mouse weighting only 59 grams
- Fat sand rat with 3 babies per pregnancy
- Cutch rat with 5 babies per pregnancy
- Zygodontomys brunneus weighting only 75 grams
- Central pebble-mound mouse weighting only 12 grams
Animals that share a litter size with Mexican harvest mouse
Those animals also give birth to 2 babies at once:
- Red-bellied mosaic-tailed rat
- Brants’s whistling rat
- White-sided jackrabbit
- Banana climbing mouse
- Blanford’s rat
- Armored rat
- European pine vole
- Cameroon clawless otter
Animals with the same weight as a Mexican harvest mouse
What other animals weight around 15 grams (0.03 lbs)?
- European pine vole weighting 17 grams
- Southern dog-faced bat weighting 12 grams
- Bates’s shrew weighting 16 grams
- Russet free-tailed bat weighting 16 grams
- Microryzomys altissimus weighting 13 grams
- Pleasant gerbil weighting 13 grams
- Rhinolophus hilli weighting 13 grams
- Big free-tailed bat weighting 18 grams
- Sandy inland mouse weighting 14 grams
- Chiriqui brown mouse weighting 15 grams