Alston s Cotton Rat vs Baleia-comum

Sigmodon alstoni compared with Balaenoptera physalus

Key Differences

Alston s Cotton Rat is Least Concern while Baleia-comum is Endangered.

Taxonomic Classification

Rank	Alston s Cotton Rat	Baleia-comum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Mammalia (mamíferos)	Mammalia (mamíferos)
Order	Rodentia (Roedores)	Cetacea (Whales & Dolphins)
Family	Cricetidae	Balaenopteridae (Rorquals)
Genus	Sigmodon	Balaenoptera (Rorquals)
Species	Sigmodon alstoni	Balaenoptera physalus

Evolutionary Relationship

Alston s Cotton Rat and Baleia-comum share a common ancestor at the Class level: Mammalia. (mamíferos)

View Class: Mammalia

Conservation Status

Alston s Cotton Rat

LC — Least Concern

Baleia-comum

EN — Endangered

Physical Characteristics

Attribute	Alston s Cotton Rat	Baleia-comum
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.

Baleia-comum

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as 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.

Baleia-comum

A baleia-fin (Balaenoptera physalus) está classificada como Em Perigo (EN) na Lista Vermelha da IUCN. Com alto risco de extinção em estado selvagem, com declínio populacional significativo e ameaças contínuas à sua sobrevivência.