What is the maximal age a Guyenne spiny rat reaches?
An adult Guyenne spiny rat (Proechimys guyannensis) usually gets as old as 4.75 years.
Guyenne spiny rats are around 63 days in the womb of their mother. When born, they weight 24 grams (0.05 lbs) and measure 2.9 cm (0′ 2″). As a member of the Echimyidae family (genus: Proechimys), their offspring is 2 babies per pregnancy. Fully grown, they reach a bodylength of 22 cm (0′ 9″).
As a reference: Usually, humans get as old as 100 years, with the average being around 75 years. After being carried in the belly of their mother for 280 days (40 weeks), they grow to an average size of 1.65m (5′ 5″) and weight in at 62 kg (137 lbs), which is obviously highly individual.
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.
Animals of the same family as a Guyenne spiny rat
Not really brothers and sisters, but from the same biological family (Echimyidae):
- Pará spiny tree-rat bringing the scale to 108 grams
- Black-spined Atlantic tree-rat bringing the scale to 224 grams
- Giant tree-rat bringing the scale to 584 grams
- Broad-headed spiny rat bringing the scale to 30 grams
- Gracile Atlantic spiny rat with 1 babies per pregnancy
- Mouse-tailed Atlantic spiny rat bringing the scale to 284 grams
- Peruvian tree-rat bringing the scale to 315 grams
- Pacific spiny rat bringing the scale to 284 grams
- Ihering’s Atlantic spiny rat bringing the scale to 220 grams
- Bolivian bamboo rat bringing the scale to 729 grams
Animals that reach the same age as Guyenne spiny rat
With an average age of 4.75 years, Guyenne spiny rat are in good companionship of the following animals:
- Dobson’s shrew tenrec usually reaching 5.58 years
- Lesser mole-rat usually reaching 4.5 years
- Euphrates jerboa usually reaching 4.17 years
- Pyrenean desman usually reaching 5 years
- Southern grasshopper mouse usually reaching 4.58 years
- Guyenne spiny rat usually reaching 4.75 years
- Great Basin pocket mouse usually reaching 4 years
- Banded hare-wallaby usually reaching 4 years
- Uinta ground squirrel usually reaching 5 years
- Otter civet usually reaching 5 years
Animals with the same number of babies Guyenne spiny rat
The same number of babies at once (2) are born by:
- Marsh rabbit
- Blanford’s rat
- Northern pygmy mouse
- Burmese ferret-badger
- Plantain squirrel
- Long-nosed bandicoot
- Lundomys
- Eastern barred bandicoot
- Amami rabbit
- Blanford’s fox
Weighting as much as Guyenne spiny rat
A fully grown Guyenne spiny rat reaches around 314 grams (0.69 lbs). So do these animals:
- Northern glider with 278 grams
- Brown rat with 282 grams
- Philippine forest rat with 253 grams
- Pygmy spotted skunk with 365 grams
- Eastern woodrat with 252 grams
- Short-tailed spiny rat with 285 grams
- Mouse-tailed Atlantic spiny rat with 285 grams
- Long-fingered triok with 370 grams
- Simons’s spiny rat with 284 grams
- Rufous soft-furred spiny rat with 282 grams
Animals as big as a Guyenne spiny rat
Those animals grow as big as a Guyenne spiny rat:
- White-footed tamarin with 24 cm (0′ 10″)
- Ferreira’s spiny tree-rat with 18.5 cm (0′ 8″)
- Mariana fruit bat with 21.7 cm (0′ 9″)
- Grey-bellied squirrel with 21.1 cm (0′ 9″)
- Pseudocheirus schlegeli with 21.6 cm (0′ 9″)
- Unstriped ground squirrel with 22.2 cm (0′ 9″)
- Royle’s pika with 17.7 cm (0′ 7″)
- Sulawesi naked-backed fruit bat with 20.3 cm (0′ 8″)
- Sinnamary brush-tailed rat with 21.6 cm (0′ 9″)
- Franklin’s ground squirrel with 24.5 cm (0′ 10″)