Brown Rat vs Violet Tooth

Rattus norvegicus compared with Hydnellum ioeides

Key Differences

• Brown Rat is Least Concern while Violet Tooth is Vulnerable.

Taxonomic Classification

Rank	Brown Rat	Violet Tooth
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Rodentia (Rodents)	Thelephorales (Thelephorales)
Family	Muridae (Mice & Rats)	Bankeraceae
Genus	Rattus	Hydnellum
Species	Rattus norvegicus	Hydnellum ioeides

Conservation Status

Brown Rat

LC — Least Concern

Violet Tooth

VU — Vulnerable

Physical Characteristics

Attribute	Brown Rat	Violet Tooth
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).

Violet Tooth

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Norway, Sweden, and United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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 3 countries:

🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States