Brown Rat vs Lesser Akialoa

Rattus norvegicus compared with Akialoa obscura

Key Differences

• Brown Rat is Least Concern while Lesser Akialoa is Extinct.

Taxonomic Classification

Rank	Brown Rat	Lesser Akialoa
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Passeriformes (Songbirds)
Family	Muridae (Mice & Rats)	Fringillidae
Genus	Rattus	Akialoa
Species	Rattus norvegicus	Akialoa obscura

Evolutionary Relationship

Brown Rat and Lesser Akialoa share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown Rat

LC — Least Concern

Lesser Akialoa

EX — Extinct

Physical Characteristics

Attribute	Brown Rat	Lesser Akialoa
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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).

Lesser Akialoa

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway