How big does a Bristle-spined rat get? Here is an overview over the average adult age:
A grown Bristle-spined rat (Chaetomys subspinosus) reaches an average size of 60 cm (2′ 0″).
When born, they have an average size of 0 cm (0′ 0″). A full-grown exemplary reaches roughly 1.3 kg (2.87 lbs). The Bristle-spined rat (genus: Chaetomys) is a member of the family Echimyidae.
As a reference: Humans reach an average body size of 1.65m (5′ 5″) while carrying 62 kg (137 lbs). A human woman is pregnant for 280 days (40 weeks) and on average become 75 years old.
The bristle-spined rat (Chaetomys subspinosus) is an arboreal rodent from Atlantic forest in eastern Brazil. Also known as the bristle-spined porcupine or thin-spined porcupine, it is the only member of the genus Chaetomys and the subfamily Chaetomyinae. It was officially described in 1818, but rarely sighted since, until December 1986, when two specimens – one a pregnant female – were found in the vicinity of Valencia in Bahia. Since then it has been recorded at several localities in eastern Brazil, from Sergipe to Espírito Santo (there are no recent records from Rio de Janeiro), but it remains rare and threatened due to habitat loss, poaching and roadkills.
Animals of the same family as a Bristle-spined rat
We found other animals of the Echimyidae family:
- Short-furred Atlantic tree-rat with a weight of 439 grams
- Colombian spiny rat with a weight of 312 grams
- Mouse-tailed Atlantic spiny rat with a weight of 284 grams
- Tome’s spiny rat with a size of 22.9 cm (0′ 10″)
- White-spined Atlantic spiny rat with a weight of 284 grams
- Giant tree-rat with a weight of 584 grams
- Armored rat with 2 babies per litter
- Boyacá spiny rat with a weight of 284 grams
- Pará spiny tree-rat with a weight of 108 grams
- Simons’s spiny rat with a weight of 284 grams
Animals with the same size as a Bristle-spined rat
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Bristle-spined rat:
- Scrub hare with a size of 49.5 cm (1′ 8″)
- Lowland paca with a size of 65 cm (2′ 2″)
- Black-and-white ruffed lemur with a size of 54.7 cm (1′ 10″)
- Southern tamandua with a size of 56.1 cm (1′ 11″)
- Grey-cheeked mangabey with a size of 51.9 cm (1′ 9″)
- Black-headed spider monkey with a size of 48.9 cm (1′ 8″)
- Long-nosed mongoose with a size of 55.4 cm (1′ 10″)
- Sri Lankan spotted chevrotain with a size of 54 cm (1′ 10″)
- Mentawai langur with a size of 51 cm (1′ 9″)
- Agile wallaby with a size of 64.6 cm (2′ 2″)
Animals with the same weight as a Bristle-spined rat
As a comparison, here are some other animals that weight as much as the Chaetomys subspinosus:
- Big-eared opossum with a weight of 1.11 kilos (2.45 lbs)
- Tufted ground squirrel with a weight of 1.35 kilos (2.98 lbs)
- Coppery titi with a weight of 1.12 kilos (2.47 lbs)
- Marsh rabbit with a weight of 1.36 kilos (3 lbs)
- Sunda flying lemur with a weight of 1.11 kilos (2.45 lbs)
- Black-headed night monkey with a weight of 1.06 kilos (2.34 lbs)
- Seven-banded armadillo with a weight of 1.53 kilos (3.37 lbs)
- Lake Mackay hare-wallaby with a weight of 1.5 kilos (3.31 lbs)
- Alexander’s kusimanse with a weight of 1.5 kilos (3.31 lbs)
- Sable with a weight of 1.17 kilos (2.58 lbs)