Brown Rat vs Water yam

Rattus norvegicus compared with Dioscorea alata

Key Differences

Brown Rat is Least Concern while Water yam is Not Evaluated.

Taxonomic Classification

Rank	Brown Rat	Water yam
Kingdom	Animalia (động vật)	Plantae (thực vật)
Phylum	Chordata (động vật có dây sống)	Magnoliophyta (Flowering Plants)
Class	Mammalia (lớp Thú)	Liliopsida (Monocots)
Order	Rodentia (Bộ Gặm nhấm)	Dioscoreales (Bộ Củ nâu)
Family	Muridae (Mice & Rats)	Dioscoreaceae
Genus	Rattus	Dioscorea
Species	Rattus norvegicus	Dioscorea alata

Conservation Status

Brown Rat

LC — Least Concern

Water yam

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Rat	Water yam
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).

Water yam

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Widely distributed across Africa (16 countries), Asia (Maldives, Taiwan), Europe (United Kingdom), North America (13 countries), Oceania and the Pacific (4 countries), and South America (6 countries).

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.