It is hard to guess what a Ernst Mayr’s water rat weights. But we have the answer:
An adult Ernst Mayr’s water rat (Leptomys ernstmayri) on average weights 42 grams (0.09 lbs).
The Ernst Mayr’s water rat is from the family Muridae (genus: Leptomys). When reaching adult age, they grow up to 12.1 cm (0′ 5″).
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.
Ernst Mayr’s water rat (Leptomys ernstmayri) is a species of rodent in the family Muridae, named for evolutionary biologist Ernst Mayr.It is found in the Foja Mountains of Papua Province, Indonesia, and in the mountains of northeastern Papua New Guinea.
Animals of the same family as a Ernst Mayr’s water rat
We found other animals of the Muridae family:
- Golden mouse with a weight of 22 grams
- Gerbil leaf-eared mouse with a weight of 17 grams
- Moss-forest rat with a weight of 46 grams
- Tamarisk jird with 4 babies per litter
- Royle’s mountain vole with a weight of 37 grams
- Western red-backed vole with a weight of 18 grams
- Brants’s whistling rat with a weight of 129 grams
- Watson’s climbing rat with 2 babies per litter
- Nephelomys keaysi with a weight of 58 grams
- Wetzel’s climbing mouse with a weight of 89 grams
Animals with the same weight as a Ernst Mayr’s water rat
As a comparison, here are some other animals that weight as much as the Leptomys ernstmayri:
- Eldorado broad-nosed bat bringing 35 grams to the scale
- Dorothy’s slender opossum bringing 37 grams to the scale
- Ega long-tongued bat bringing 49 grams to the scale
- Least chipmunk bringing 42 grams to the scale
- Mexican mouse opossum bringing 49 grams to the scale
- Mittendorf’s striped grass mouse bringing 41 grams to the scale
- Chestnut-striped opossum bringing 45 grams to the scale
- Temchuk’s bolo mouse bringing 47 grams to the scale
- Brown mouse lemur bringing 48 grams to the scale
- Guatemalan vole bringing 42 grams to the scale
Animals with the same size as a Ernst Mayr’s water rat
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Ernst Mayr’s water rat:
- Paraguayan fat-tailed mouse opossum with a size of 12.7 cm (0′ 5″)
- Mindoro climbing rat with a size of 12.3 cm (0′ 5″)
- Stuhlmann’s golden mole with a size of 12.9 cm (0′ 6″)
- Japanese mole with a size of 14.3 cm (0′ 6″)
- Nelson’s kangaroo rat with a size of 12.7 cm (0′ 5″)
- Moss-forest rat with a size of 11.5 cm (0′ 5″)
- Jentink’s flying squirrel with a size of 13.1 cm (0′ 6″)
- Siskiyou chipmunk with a size of 14.5 cm (0′ 6″)
- Swift fruit bat with a size of 10.4 cm (0′ 5″)
- Bower’s white-toothed rat with a size of 12.7 cm (0′ 5″)