How many baby Sierra Madre ground squirrels are in a litter?
A Sierra Madre ground squirrel (Spermophilus madrensis) usually gives birth to around 4 babies.
Upon birth, they weight 6 grams (0.01 lbs) and measure 5.6 cm (0′ 3″). They are a member of the Sciuridae family (genus: Spermophilus). An adult Sierra Madre ground squirrel grows up to a size of 17.2 cm (0′ 7″).
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 Sierra Madre ground squirrel (Callospermophilus madrensis) is a species of rodent in the squirrel family. It is endemic to the Sierra Madre Occidental, in northern Mexico. Its natural habitat is subtropical or tropical dry lowland grassland.
Other animals of the family Sciuridae
Sierra Madre ground squirrel is a member of the Sciuridae, as are these animals:
- Swinhoe’s striped squirrel with 3 babies per pregnancy
- Lodgepole chipmunk with 4 babies per pregnancy
- Kashmir flying squirrel with 3 babies per pregnancy
- Red squirrel with 4 babies per pregnancy
- Mohave ground squirrel with 6 babies per pregnancy
- Sculptor squirrel raching a size of 12 cm (0′ 5″)
- Mentawai squirrel weighting only 296 grams
- Thirteen-lined ground squirrel with 8 babies per pregnancy
- Long-eared chipmunk with 5 babies per pregnancy
- Harris’s antelope squirrel with 6 babies per pregnancy
Animals that share a litter size with Sierra Madre ground squirrel
Those animals also give birth to 4 babies at once:
- Tarbagan marmot
- Townsend’s chipmunk
- Mexican spiny pocket mouse
- Malayan weasel
- Gray-collared chipmunk
- Silver mountain vole
- Bank vole
- Smoke-bellied rat
- Merriam’s chipmunk
- Indian bush rat
Animals with the same weight as a Sierra Madre ground squirrel
What other animals weight around 207 grams (0.46 lbs)?
- Lundomys weighting 238 grams
- Ihering’s Atlantic spiny rat weighting 221 grams
- Pteropus brunneus weighting 200 grams
- Greedy olalla rat weighting 206 grams
- Mountain weasel weighting 180 grams
- Yucatan squirrel weighting 225 grams
- Pale field rat weighting 169 grams
- Earless water rat weighting 168 grams
- Hairy-tailed antsangy weighting 219 grams
- Biak naked-backed fruit bat weighting 200 grams
Animals with the same size as a Sierra Madre ground squirrel
Also reaching around 17.2 cm (0′ 7″) in size do these animals:
- Dusky field rat gets as big as 15.9 cm (0′ 7″)
- Mexican ground squirrel gets as big as 19.3 cm (0′ 8″)
- Mindoro striped rat gets as big as 17.3 cm (0′ 7″)
- Large-toothed hairy-tailed rat gets as big as 19.5 cm (0′ 8″)
- Long-nosed paramelomys gets as big as 17 cm (0′ 7″)
- Harris’s antelope squirrel gets as big as 16 cm (0′ 7″)
- Luzon striped rat gets as big as 17.3 cm (0′ 7″)
- Sundevall’s jird gets as big as 15 cm (0′ 6″)
- Mindanao hairy-tailed rat gets as big as 17.5 cm (0′ 7″)
- Golden hamster gets as big as 18 cm (0′ 8″)