Arizona Cotton Rat vs Pacific Spiny-rat

Sigmodon arizonae compared with Proechimys decumanus

Key Differences

• Arizona Cotton Rat is Least Concern while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Arizona Cotton Rat	Pacific Spiny-rat
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order same	Rodentia (อันดับสัตว์ฟันแทะ)	Rodentia (อันดับสัตว์ฟันแทะ)
Family	Cricetidae	Echimyidae
Genus	Sigmodon	Proechimys
Species	Sigmodon arizonae	Proechimys decumanus

Evolutionary Relationship

Arizona Cotton Rat and Pacific Spiny-rat share a common ancestor at the Order level: Rodentia. (อันดับสัตว์ฟันแทะ)

Conservation Status

Arizona Cotton Rat

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Arizona Cotton Rat	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arizona Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Arizona Cotton Rat

The Arizona Cotton Rat, Sigmodon arizonae, is a species. It is currently assessed as least concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.