Brown Rat vs Rosette Tooth

Rattus norvegicus compared with Hydnellum cumulatum

Key Differences

• Brown Rat is Least Concern while Rosette Tooth is Critically Endangered.

Taxonomic Classification

Rank	Brown Rat	Rosette Tooth
Kingdom	Animalia (动物界)	Fungi (真菌界)
Phylum	Chordata (脊索动物门)	Basidiomycota (担子菌门)
Class	Mammalia (哺乳動物)	Agaricomycetes (傘菌綱)
Order	Rodentia (啮齿目)	Thelephorales (革菌目)
Family	Muridae (Mice & Rats)	Bankeraceae
Genus	Rattus	Hydnellum
Species	Rattus norvegicus	Hydnellum cumulatum

Conservation Status

Brown Rat

LC — Least Concern

Rosette Tooth

CR — Critically Endangered

Physical Characteristics

Attribute	Brown Rat	Rosette 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).

Rosette Tooth

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Rat

褐家鼠（Rattus norvegicus）在IUCN红色名录中被列为无危（LC）。其分布广泛，种群数量稳定，无紧迫保护关切。

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden