Brown Rat vs Laysan Duck

Rattus norvegicus compared with Anas laysanensis

Key Differences

• Brown Rat is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Brown Rat	Laysan Duck
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Mammalia (포유류)	Aves (새)
Order	Rodentia (설치류)	Anseriformes (기러기목)
Family	Muridae (Mice & Rats)	Anatidae
Genus	Rattus	Anas
Species	Rattus norvegicus	Anas laysanensis

Evolutionary Relationship

Brown Rat and Laysan Duck share a common ancestor at the Phylum level: Chordata. (척삭동물)

Conservation Status

Brown Rat

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Brown Rat	Laysan Duck
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).

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically 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.

Laysan Duck

레이산 오리(Anas laysanensis)는 IUCN 적색목록에서 위급(CR) 등급으로 분류됩니다. 심각한 개체수 감소와 서식지 손실로 인해 야생에서 절멸할 위험이 매우 높은 종입니다.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇳🇴 Norway 🇬🇧 United Kingdom