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 (動物)	Fungi (菌界)
Phylum	Chordata (脊索動物)	Basidiomycota (担子菌門)
Class	Mammalia (哺乳類)	Agaricomycetes (真正担子菌綱)
Order	Rodentia (ネズミ目)	Thelephorales (イボタケ目)
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

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:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden