Alston s Cotton Rat vs Big-eared opossum

Sigmodon alstoni compared with Didelphis aurita

Taxonomic Classification

Rank	Alston s Cotton Rat	Big-eared opossum
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Rodentia (ネズミ目)	Didelphimorphia (Didelphimorphia)
Family	Cricetidae	Didelphidae
Genus	Sigmodon	Didelphis
Species	Sigmodon alstoni	Didelphis aurita

Evolutionary Relationship

Alston s Cotton Rat and Big-eared opossum share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

Alston s Cotton Rat

LC — Least Concern

Big-eared opossum

LC — Least Concern

Physical Characteristics

Attribute	Alston s Cotton Rat	Big-eared opossum
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.

Big-eared opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Big-eared opossum

The Big-eared opossum (Didelphis aurita) is a species in the genus Didelphis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.