It is hard to guess what a Roberto’s spiny rat weights. But we have the answer:
An adult Roberto’s spiny rat (Proechimys oris) on average weights 285 grams (0.63 lbs).
The Roberto’s spiny rat is from the family Echimyidae (genus: Proechimys). When reaching adult age, they grow up to 19.7 cm (0′ 8″).
As a reference: An average human weights in at 62 kg (137 lbs) and reaches an average size of 1.65m (5′ 5″). Humans spend 280 days (40 weeks) in the womb of their mother and reach around 75 years of age.
Roberto’s spiny-rat, Proechimys roberti, or Para spiny rat, is a spiny rat species from South America. It is found in Brazil.Morphological, karyological, and mitochondrial DNA (cytochrome b) data indicate that Proechimys oris is likely a junior synonym of P. roberti.
Animals of the same family as a Roberto’s spiny rat
We found other animals of the Echimyidae family:
- White-spined Atlantic spiny rat with a weight of 284 grams
- Guyenne spiny rat with a weight of 314 grams
- Magdalena spiny rat with a weight of 284 grams
- Painted tree-rat with a weight of 519 grams
- Orange-brown Atlantic tree-rat with a weight of 296 grams
- White-faced spiny tree-rat with a weight of 610 grams
- Black-spined Atlantic tree-rat with a weight of 224 grams
- Dusky spiny tree-rat with a weight of 108 grams
- Pallid Atlantic tree-rat with a weight of 215 grams
- Orange-brown Atlantic tree-rat with a weight of 312 grams
Animals with the same weight as a Roberto’s spiny rat
As a comparison, here are some other animals that weight as much as the Proechimys oris:
- Magellanic tuco-tuco bringing 272 grams to the scale
- Steere’s spiny rat bringing 284 grams to the scale
- Luzon broad-toothed rat bringing 268 grams to the scale
- Orange-brown Atlantic tree-rat bringing 312 grams to the scale
- Anderson’s four-eyed opossum bringing 324 grams to the scale
- Wyoming ground squirrel bringing 325 grams to the scale
- Maule tuco-tuco bringing 235 grams to the scale
- Red-tailed squirrel bringing 319 grams to the scale
- Kinabalu squirrel bringing 324 grams to the scale
- Armored rat bringing 281 grams to the scale