It is hard to guess what a Japen rat weights. But we have the answer:
An adult Japen rat (Rattus jobiensis) on average weights 380 grams (0.84 lbs).
The Japen rat is from the family Muridae (genus: Rattus). When reaching adult age, they grow up to 21.6 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.
The Japen rat (Rattus jobiensis) is a species of rodent in the family Muridae found only in Yapen, Biak-Supiori, and Owi islands of West Papua, Indonesia.
Animals of the same family as a Japen rat
We found other animals of the Muridae family:
- Lesser small-toothed rat with a size of 15.8 cm (0′ 7″)
- Melanomys caliginosus with a weight of 41 grams
- Mindanao mountain rat with a size of 12.8 cm (0′ 6″)
- Afghan vole with 2 babies per litter
- Sody’s tree rat with 4 babies per litter
- Insular vole with a weight of 66 grams
- Long-nosed mosaic-tailed rat with a weight of 82 grams
- Lukolela swamp rat with a weight of 42 grams
- Bunchgrass leaf-eared mouse with a weight of 43 grams
- Namib brush-tailed gerbil with a weight of 38 grams
Animals with the same weight as a Japen rat
As a comparison, here are some other animals that weight as much as the Rattus jobiensis:
- Slender-tailed squirrel bringing 427 grams to the scale
- Spiny Ceram rat bringing 306 grams to the scale
- Pygmy rabbit bringing 437 grams to the scale
- Brown four-eyed opossum bringing 365 grams to the scale
- Microcebus coquereli bringing 328 grams to the scale
- Red-tailed squirrel bringing 319 grams to the scale
- Mountain giant Sunda rat bringing 419 grams to the scale
- Weyland ringtail possum bringing 456 grams to the scale
- White-headed marmoset bringing 342 grams to the scale
- Texas pocket gopher bringing 397 grams to the scale
Animals with the same size as a Japen rat
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Japen rat:
- Lyle’s flying fox with a size of 23.7 cm (0′ 10″)
- Summit rat with a size of 19 cm (0′ 8″)
- Derby’s woolly opossum with a size of 23.1 cm (0′ 10″)
- Mentawai three-striped squirrel with a size of 18.7 cm (0′ 8″)
- Lowland brush mouse with a size of 17.6 cm (0′ 7″)
- Madagascan fruit bat with a size of 20.2 cm (0′ 8″)
- Bushy-tailed woodrat with a size of 20.9 cm (0′ 9″)
- Big-eared flying fox with a size of 21.1 cm (0′ 9″)
- Black-spined Atlantic tree-rat with a size of 21.3 cm (0′ 9″)
- Texas pocket gopher with a size of 18.4 cm (0′ 8″)