Brown Rat vs Giant Otter

Rattus norvegicus compared with Pteronura brasiliensis

Key Differences

• Brown Rat is Least Concern while Giant Otter is Endangered.

Taxonomic Classification

Rank	Brown Rat	Giant Otter
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class same	Mammalia (포유류)	Mammalia (포유류)
Order	Rodentia (설치류)	Carnivora (식육목)
Family	Muridae (Mice & Rats)	Mustelidae (Weasels & Otters)
Genus	Rattus	Pteronura
Species	Rattus norvegicus	Pteronura brasiliensis

Evolutionary Relationship

Brown Rat and Giant Otter share a common ancestor at the Class level: Mammalia. (포유류)

Conservation Status

Brown Rat

LC — Least Concern

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Brown Rat	Giant Otter
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).

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Rat

집쥐(Rattus norvegicus)는 IUCN 적색목록에서 관심대상(LC)으로 분류됩니다. 분포 범위 전반에 걸쳐 널리 서식하며 개체 수가 안정적으로 유지되고 있어 즉각적인 보전 우려가 없습니다.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela