Alston s Cotton Rat vs Blunt-headed Salamander

Sigmodon alstoni compared with Ambystoma amblycephalum

Key Differences

• Alston s Cotton Rat is Least Concern while Blunt-headed Salamander is Critically Endangered.

Taxonomic Classification

Rank	Alston s Cotton Rat	Blunt-headed Salamander
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Amphibia (両生類)
Order	Rodentia (ネズミ目)	Caudata (有尾目)
Family	Cricetidae	Ambystomatidae
Genus	Sigmodon	Ambystoma
Species	Sigmodon alstoni	Ambystoma amblycephalum

Evolutionary Relationship

Alston s Cotton Rat and Blunt-headed Salamander share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Alston s Cotton Rat

LC — Least Concern

Blunt-headed Salamander

CR — Critically Endangered

Physical Characteristics

Attribute	Alston s Cotton Rat	Blunt-headed Salamander
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.

Blunt-headed Salamander

Habitat

Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Mexico. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Blunt-headed Salamander

The Blunt-headed Salamander (Ambystoma amblycephalum) is a species in the genus Ambystoma. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical coniferous forests, tropical and subtropical grasslands and savannas, and Mediterranean forests and woodlands, among 6 distinct biome types spanning the Nearctic and Neo