Alston s Cotton Rat vs Arp's Rocket Frog

Sigmodon alstoni compared with Aromobates walterarpi

Key Differences

Alston s Cotton Rat is Least Concern while Arp's Rocket Frog is Critically Endangered.

Taxonomic Classification

Rank	Alston s Cotton Rat	Arp's Rocket Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Anura (Frogs & Toads)
Family	Cricetidae	Aromobatidae
Genus	Sigmodon	Aromobates
Species	Sigmodon alstoni	Aromobates walterarpi

Evolutionary Relationship

Alston s Cotton Rat and Arp's Rocket Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Alston s Cotton Rat

LC — Least Concern

Arp's Rocket Frog

CR — Critically Endangered

Physical Characteristics

Attribute	Alston s Cotton Rat	Arp's Rocket Frog
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.

Arp's Rocket Frog

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Venezuela. 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.

Arp's Rocket Frog

The Arp's Rocket Frog, Aromobates walterarpi, is a species. It is currently assessed as critically endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types within the Ne.