Brown Rat vs Javan Rusa

Rattus norvegicus compared with Rusa timorensis

Key Differences

• Brown Rat is Least Concern while Javan Rusa is Vulnerable.

Taxonomic Classification

Rank	Brown Rat	Javan Rusa
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Rodentia (ネズミ目)	Artiodactyla (偶蹄目)
Family	Muridae (Mice & Rats)	Cervidae (Deer)
Genus	Rattus	Rusa
Species	Rattus norvegicus	Rusa timorensis

Evolutionary Relationship

Brown Rat and Javan Rusa share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

Brown Rat

LC — Least Concern

Javan Rusa

VU — Vulnerable

Physical Characteristics

Attribute	Brown Rat	Javan Rusa
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).

Javan Rusa

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Afrotropic and Oceanian realms.

Range

Distributed across Mauritius, New Zealand, and Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Rat

ドブネズミ（Rattus norvegicus）はIUCNレッドリストで軽度懸念（LC）に分類されています。分布域全体に広く生息し個体数は安定しており、緊急の保護上の懸念はありません。

Shared Countries

Both species can be found in 3 countries:

🇲🇺 Mauritius 🇳🇿 New Zealand 🇳🇴 Norway