How many baby Perote ground squirrels are in a litter?
A Perote ground squirrel (Spermophilus perotensis) usually gives birth to around 6 babies.
Upon birth, they weight 11 grams (0.02 lbs) and measure 5.2 cm (0′ 3″). They are a member of the Sciuridae family (genus: Spermophilus). An adult Perote ground squirrel grows up to a size of 17.9 cm (0′ 8″).
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 Perote ground squirrel (Xerospermosphilus perotensis) is a species of rodent in the family Sciuridae. It is endemic to Mexico and is currently at risk of extinction. Perote ground squirrels live within the same area as rock squirrels (Otospermophilus variegatus) but they use different microhabitats. In one case it also shares its habitat with the Mexican ground squirrel (Ictidomys mexicanus). Perote ground squirrels have traits similar to those of spotted ground squirrels (X. spilosoma pallescens) found in the northern Mexican Plateau; however they are larger, have shorter tails and yellow backs. Its skull is relatively narrow with a large braincase and they have heavy, thick teeth. Perote ground squirrels have two annual cycles, an active phase (March–November) and a hibernation phase (December–February). Some overlap may occur in March and November however.X. perotensis was first described as a species in 1893. Much research is being done recently, and many scientists think it should be classified as a subspecies of X. spilosoma. “In either case, and regardless of the position one might adopt around species concepts, it is evident that X. perotensis constitutes an independent and isolated biological entity that has evolved under restricted geographical and ecological contexts as a consequence of recent Pleistocene events”.
Other animals of the family Sciuridae
Perote ground squirrel is a member of the Sciuridae, as are these animals:
- Red-tailed chipmunk with 4 babies per pregnancy
- Brooke’s squirrel weighting only 114 grams
- Mentawai three-striped squirrel weighting only 241 grams
- Swinhoe’s striped squirrel with 3 babies per pregnancy
- Southern flying squirrel with 3 babies per pregnancy
- Forest giant squirrel with 1 babies per pregnancy
- Mexican ground squirrel with 5 babies per pregnancy
- Franklin’s ground squirrel with 9 babies per pregnancy
- Townsend’s chipmunk with 4 babies per pregnancy
- Fire-footed rope squirrel with 1 babies per pregnancy
Animals that share a litter size with Perote ground squirrel
Those animals also give birth to 6 babies at once:
- Dwarf shrew
- Long-tailed weasel
- Desert dormouse
- European ground squirrel
- California ground squirrel
- Seven-banded armadillo
- Flat-haired mouse
- Round-tailed ground squirrel
- Northern quoll
- Mindoro black rat
Animals with the same weight as a Perote ground squirrel
What other animals weight around 140 grams (0.31 lbs)?
- New Caledonia flying fox weighting 151 grams
- Leadbeater’s possum weighting 137 grams
- Western nesomys weighting 155 grams
- Attwater’s pocket gopher weighting 144 grams
- Amazonian marsh rat weighting 120 grams
- Stephen’s woodrat weighting 149 grams
- San Joaquin antelope squirrel weighting 160 grams
- Alston’s mouse opossum weighting 132 grams
- Sulawesi harpy fruit bat weighting 116 grams
- Silvery mole-rat weighting 160 grams
Animals with the same size as a Perote ground squirrel
Also reaching around 17.9 cm (0′ 8″) in size do these animals:
- Four-toed hedgehog gets as big as 15.9 cm (0′ 7″)
- Bramble Cay melomys gets as big as 14.7 cm (0′ 6″)
- Ribboned rope squirrel gets as big as 16.7 cm (0′ 7″)
- Admiralty flying fox gets as big as 17.9 cm (0′ 8″)
- Biak glider gets as big as 14.5 cm (0′ 6″)
- Chestnut-bellied spiny rat gets as big as 16.7 cm (0′ 7″)
- Yellow-nosed cotton rat gets as big as 15.1 cm (0′ 6″)
- Plains pocket gopher gets as big as 16.8 cm (0′ 7″)
- Isarog striped shrew-rat gets as big as 17.3 cm (0′ 7″)
- Greater fairy armadillo gets as big as 15.7 cm (0′ 7″)