Big-eared opossum vs Brown Rat

Didelphis aurita compared with Rattus norvegicus

Taxonomic Classification

Rank	Big-eared opossum	Brown Rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Didelphimorphia (Didelphimorphia)	Rodentia (Rodents)
Family	Didelphidae	Muridae (Mice & Rats)
Genus	Didelphis	Rattus
Species	Didelphis aurita	Rattus norvegicus

Evolutionary Relationship

Big-eared opossum and Brown Rat share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Big-eared opossum

LC — Least Concern

Brown Rat

LC — Least Concern

Physical Characteristics

Attribute	Big-eared opossum	Brown Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big-eared opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Brown Rat

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 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

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.

Brown Rat

Brown Rat (Rattus norvegicus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.