It is hard to guess what a Thomas’s water mouse weights. But we have the answer:
An adult Thomas’s water mouse (Rheomys thomasi) on average weights 40 grams (0.09 lbs).
The Thomas’s water mouse is from the family Muridae (genus: Rheomys). When reaching adult age, they grow up to 40.6 cm (1′ 4″).
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.
Thomas’s water mouse (Rheomys thomasi) is a species of rodent in the family Cricetidae found in El Salvador, Guatemala, and Mexico at altitudes of 400 to 2700 m. It lives near forest streams and is semiaquatic; its carnivorous diet includes both invertebrates and small vertebrates. The conservation status of the species is rated as “near threatened” because of the small size of its range and the threat of degradation of its habitat, including the water quality of the streams it lives along.
Animals of the same family as a Thomas’s water mouse
We found other animals of the Muridae family:
- White-footed mouse with a weight of 18 grams
- Narrow-nosed harvest mouse with a weight of 20 grams
- Master leaf-eared mouse with a weight of 68 grams
- Black-clawed brush-furred rat with a weight of 10 grams
- Gleaning mouse with a weight of 35 grams
- Sloggett’s vlei rat with a weight of 106 grams
- Savanna gerbil with a weight of 121 grams
- Southern mole vole with a weight of 80 grams
- Pallid Atlantic Forest rat with a weight of 90 grams
- Mountain mosaic-tailed rat with a weight of 47 grams
Animals with the same weight as a Thomas’s water mouse
As a comparison, here are some other animals that weight as much as the Rheomys thomasi:
- Heavy-browed mouse opossum bringing 47 grams to the scale
- Fawn hopping mouse bringing 34 grams to the scale
- Spanish mole bringing 48 grams to the scale
- White-footed climbing mouse bringing 40 grams to the scale
- Silent grass mouse bringing 39 grams to the scale
- Lesser short-nosed fruit bat bringing 33 grams to the scale
- Osgood’s leaf-eared mouse bringing 45 grams to the scale
- California red tree mouse bringing 32 grams to the scale
- Molossops abrasus bringing 35 grams to the scale
- Bushy-tailed hairy-footed gerbil bringing 35 grams to the scale