How many baby Guyenne spiny rats are in a litter?
A Guyenne spiny rat (Proechimys cayennensis) usually gives birth to around 2 babies.
Each of those little ones spend around 63 days as a fetus before they are released into the wild. Upon birth, they weight 24 grams (0.05 lbs) and measure 19.1 cm (0′ 8″). They are a member of the Echimyidae family (genus: Proechimys). An adult Guyenne spiny rat grows up to a size of 22 cm (0′ 9″).
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 Guyenne spiny-rat, Proechimys guyannensis, or Cayenne spiny rat, is a spiny rat species from South America. It is found in Brazil, Colombia, French Guiana, Guyana, Surinam and Venezuela.
Other animals of the family Echimyidae
Guyenne spiny rat is a member of the Echimyidae, as are these animals:
- Sucre spiny rat weighting only 284 grams
- Soft-spined Atlantic spiny rat with 2 babies per pregnancy
- Dusky spiny tree-rat weighting only 108 grams
- Fischer’s guiara weighting only 188 grams
- Guyenne spiny rat weighting only 285 grams
- Short-furred Atlantic tree-rat weighting only 439 grams
- Ihering’s Atlantic spiny rat with 1 babies per pregnancy
- Pacific spiny rat weighting only 284 grams
- Red-crested tree-rat weighting only 145 grams
- Pallid Atlantic tree-rat weighting only 215 grams
Animals that share a litter size with Guyenne spiny rat
Those animals also give birth to 2 babies at once:
- Marsh rabbit
- Common yellow-toothed cavy
- Lion
- Dusky-footed woodrat
- Soft-spined Atlantic spiny rat
- Red-legged sun squirrel
- Greater stick-nest rat
- Greater Egyptian jerboa
- Thomas’s giant deer mouse
- Slender mongoose
Animals that get as old as a Guyenne spiny rat
Other animals that usually reach the age of 4.75 years:
- Peters’s climbing rat with 5.33 years
- Yellow-pine chipmunk with 5.17 years
- Saharan striped polecat with 5 years
- Paucident planigale with 5 years
- Meadow jumping mouse with 5 years
- Long-tailed dunnart with 5 years
- Steppe pika with 4 years
- Mexican funnel-eared bat with 4.75 years
- Woodland jumping mouse with 4 years
- Cave nectar bat with 5 years
Animals with the same weight as a Guyenne spiny rat
What other animals weight around 315 grams (0.69 lbs)?
- Lowland ringtail possum weighting 300 grams
- Short-tailed spiny rat weighting 285 grams
- Particolored flying squirrel weighting 255 grams
- Mouse-tailed Atlantic spiny rat weighting 285 grams
- Common marmoset weighting 291 grams
- Mouse-tailed Atlantic spiny rat weighting 284 grams
- Unstriped ground squirrel weighting 317 grams
- Gray slender loris weighting 254 grams
- Greater hedgehog tenrec weighting 277 grams
- Shiny guinea pig weighting 283 grams
Animals with the same size as a Guyenne spiny rat
Also reaching around 22 cm (0′ 9″) in size do these animals:
- Rufous elephant shrew gets as big as 25 cm (0′ 10″)
- North African hedgehog gets as big as 21.4 cm (0′ 9″)
- Black-spined Atlantic tree-rat gets as big as 21.3 cm (0′ 9″)
- Mount Data shrew-rat gets as big as 20.1 cm (0′ 8″)
- Large Luzon forest rat gets as big as 24 cm (0′ 10″)
- Palawan treeshrew gets as big as 18.5 cm (0′ 8″)
- Lewis’s tuco-tuco gets as big as 17.7 cm (0′ 7″)
- Asian red-cheeked squirrel gets as big as 20.3 cm (0′ 8″)
- Amur hedgehog gets as big as 24.9 cm (0′ 10″)
- Southern African hedgehog gets as big as 18.2 cm (0′ 8″)