It is hard to guess what a Allen’s cotton rat weights. But we have the answer:
An adult Allen’s cotton rat (Sigmodon alleni) on average weights 174 grams (0.38 lbs).
The Allen’s cotton rat is from the family Muridae (genus: Sigmodon). When reaching adult age, they grow up to 17 cm (0′ 7″).
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.
Allen’s cotton rat (Sigmodon alleni) is a species of rodent in the family Cricetidae. It is endemic to western Mexico, where its distribution extends from Sinaloa to Oaxaca. The formerly recognized S. planifrons and S. vulcani are now considered conspecific with S. alleni by the IUCN.This species lives in tropical and mixed forests. It creates runways in grassy areas and constructs nests out of grass in logs, under rocks, and in clumps of vegetation. It is affected by deforestation in its native range.
Animals of the same family as a Allen’s cotton rat
We found other animals of the Muridae family:
- Michoacan deer mouse with a weight of 49 grams
- Lesser small-toothed rat with a size of 15.8 cm (0′ 7″)
- Tristram’s jird with a weight of 112 grams
- Guinea multimammate mouse with a weight of 64 grams
- Drylands vesper mouse with a weight of 20 grams
- Temchuk’s bolo mouse with a weight of 47 grams
- Florida mouse with a weight of 30 grams
- Montane Oldfield mouse with a weight of 77 grams
- Least forest mouse with a weight of 21 grams
- Scolomys ucayalensis with a weight of 26 grams
Animals with the same weight as a Allen’s cotton rat
As a comparison, here are some other animals that weight as much as the Sigmodon alleni:
- Speke’s pectinator bringing 169 grams to the scale
- Mottled tuco-tuco bringing 192 grams to the scale
- Goldman’s woodrat bringing 198 grams to the scale
- Spectral bat bringing 171 grams to the scale
- Island mouse bringing 164 grams to the scale
- Holochilus brasiliensis bringing 155 grams to the scale
- White-tailed antsangy bringing 205 grams to the scale
- Four-toed elephant shrew bringing 201 grams to the scale
- Ochre mole-rat bringing 200 grams to the scale
- Greedy olalla rat bringing 206 grams to the scale
Animals with the same size as a Allen’s cotton rat
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Allen’s cotton rat:
- Robinson’s mouse opossum with a size of 15 cm (0′ 6″)
- Mindoro striped rat with a size of 17.3 cm (0′ 7″)
- Steinbach’s tuco-tuco with a size of 19.6 cm (0′ 8″)
- Lowland brush mouse with a size of 17.6 cm (0′ 7″)
- Moncton’s mosaic-tailed rat with a size of 14.7 cm (0′ 6″)
- Gorongoza gerbil with a size of 16 cm (0′ 7″)
- Striped bush squirrel with a size of 17.8 cm (0′ 8″)
- Smith’s bush squirrel with a size of 17.2 cm (0′ 7″)
- Cape York rat with a size of 18.9 cm (0′ 8″)
- Tawny-bellied cotton rat with a size of 18 cm (0′ 8″)