It is hard to guess what a Giant Atlantic tree-rat weights. But we have the answer:
An adult Giant Atlantic tree-rat (Echimys thomasi) on average weights 502 grams (1.11 lbs).
The Giant Atlantic tree-rat is from the family Echimyidae (genus: Echimys). When reaching adult age, they grow up to 28.2 cm (1′ 0″).
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.
The giant Atlantic tree-rat (Phyllomys thomasi) is a spiny rat species from South America. The species is endemic to São Sebastião Island off the coast of São Paulo State, Brazil, which is protected by the Ilhabela State Park.
Animals of the same family as a Giant Atlantic tree-rat
We found other animals of the Echimyidae family:
- Giant tree-rat with a weight of 584 grams
- Pacific spiny rat with a weight of 284 grams
- White-faced spiny tree-rat with a weight of 610 grams
- White-tailed olalla rat with a weight of 274 grams
- Brazilian spiny tree-rat with a weight of 400 grams
- Boyacá spiny rat with a weight of 284 grams
- Amazon bamboo rat with a weight of 650 grams
- Pallid Atlantic tree-rat with a weight of 215 grams
- Peruvian tree-rat with a weight of 315 grams
- Steere’s spiny rat with a weight of 284 grams
Animals with the same weight as a Giant Atlantic tree-rat
As a comparison, here are some other animals that weight as much as the Echimys thomasi:
- Golden-headed lion tamarin bringing 573 grams to the scale
- Central African oyan bringing 570 grams to the scale
- Ring-tailed ground squirrel bringing 500 grams to the scale
- Red-handed tamarin bringing 541 grams to the scale
- Gray-backed sportive lemur bringing 506 grams to the scale
- Moluccan naked-backed fruit bat bringing 465 grams to the scale
- Pied tamarin bringing 465 grams to the scale
- Central Texas pocket gopher bringing 599 grams to the scale
- Emperor tamarin bringing 409 grams to the scale
- Mountain giant Sunda rat bringing 419 grams to the scale
Animals with the same size as a Giant Atlantic tree-rat
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Giant Atlantic tree-rat:
- Eastern lesser bamboo lemur with a size of 33.5 cm (1′ 2″)
- Eastern small-toothed rat with a size of 24.2 cm (0′ 10″)
- Mountain weasel with a size of 24.4 cm (0′ 10″)
- Brazilian three-banded armadillo with a size of 30 cm (1′ 0″)
- Prevost’s squirrel with a size of 24.7 cm (0′ 10″)
- Gray-bellied night monkey with a size of 30.5 cm (1′ 1″)
- Red-legged sun squirrel with a size of 23.8 cm (0′ 10″)
- Cape ground squirrel with a size of 24.7 cm (0′ 10″)
- Xerus erythropus with a size of 31.2 cm (1′ 1″)
- Narrow-striped mongoose with a size of 31.2 cm (1′ 1″)