Alston s Cotton Rat vs Japanese Weasel

Sigmodon alstoni compared with Mustela itatsi

Key Differences

• Alston s Cotton Rat is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Alston s Cotton Rat	Japanese Weasel
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Rodentia (啮齿目)	Carnivora (食肉目)
Family	Cricetidae	Mustelidae (Weasels & Otters)
Genus	Sigmodon	Mustela
Species	Sigmodon alstoni	Mustela itatsi

Evolutionary Relationship

Alston s Cotton Rat and Japanese Weasel share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

Alston s Cotton Rat

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Alston s Cotton Rat	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alston s Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Japanese Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Japan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Alston s Cotton Rat

The Alston s Cotton Rat (Sigmodon alstoni) is a species in the genus Sigmodon. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems. Distributed across Colombia and Venezuela.