It is hard to guess what a Roberto’s spiny rat weights. But we have the answer:
An adult Roberto’s spiny rat (Proechimys roberti) on average weights 284 grams (0.63 lbs).
The Roberto’s spiny rat is from the family Echimyidae (genus: Proechimys). When reaching adult age, they grow up to 22 cm (0′ 9″).
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:
- Golden Atlantic tree-rat with a weight of 243 grams
- Sinnamary brush-tailed rat with a weight of 291 grams
- Tome’s spiny rat with a weight of 355 grams
- Speckled spiny tree-rat with a weight of 283 grams
- Short-furred Atlantic tree-rat with a weight of 439 grams
- Hairy Atlantic spiny rat with a weight of 284 grams
- Owl’s spiny rat with a weight of 114 grams
- Drab Atlantic tree-rat with a weight of 260 grams
- Pacific spiny rat with a weight of 284 grams
- Montane bamboo rat with a weight of 382 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 roberti:
- Hairy Atlantic spiny rat bringing 285 grams to the scale
- Deppe’s squirrel bringing 250 grams to the scale
- Southern mountain cavy bringing 261 grams to the scale
- Cooper’s mountain squirrel bringing 250 grams to the scale
- Microcebus coquereli bringing 328 grams to the scale
- Lundomys bringing 238 grams to the scale
- Southern spiny pocket mouse bringing 268 grams to the scale
- Long-eared hedgehog bringing 332 grams to the scale
- Bioko Allen’s bushbaby bringing 268 grams to the scale
- Strong tuco-tuco bringing 233 grams to the scale