Brown Rat vs Lesser White-toothed Shrew

Rattus norvegicus compared with Crocidura suaveolens

Taxonomic Classification

Rank	Brown Rat	Lesser White-toothed Shrew
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum same	Chordata (रज्जुकी)	Chordata (रज्जुकी)
Class same	Mammalia (स्तनधारी)	Mammalia (स्तनधारी)
Order	Rodentia (कृंतक)	Soricomorpha (Soricomorpha)
Family	Muridae (Mice & Rats)	Soricidae
Genus	Rattus	Crocidura
Species	Rattus norvegicus	Crocidura suaveolens

Evolutionary Relationship

Brown Rat and Lesser White-toothed Shrew share a common ancestor at the Class level: Mammalia. (स्तनधारी)

Conservation Status

Brown Rat

LC — Least Concern

Lesser White-toothed Shrew

LC — Least Concern

Physical Characteristics

Attribute	Brown Rat	Lesser White-toothed Shrew
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 White-toothed Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Asia (Cyprus) and Europe (9 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.

Shared Countries

Both species can be found in 10 countries:

🇧🇪 Belgium 🇨🇾 Cyprus 🇫🇷 France 🇬🇷 Greece 🇮🇹 Italy 🇳🇱 Netherlands 🇳🇴 Norway 🇷🇺 Russia 🇪🇸 Spain 🇬🇧 United Kingdom