Brown Rat vs Weeping Toothcrust

Rattus norvegicus compared with Dacryobolus sudans

Key Differences

• Brown Rat is Least Concern while Weeping Toothcrust is Vulnerable.

Taxonomic Classification

Rank	Brown Rat	Weeping Toothcrust
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Rodentia (Rodents)	Polyporales (Polyporales)
Family	Muridae (Mice & Rats)	Dacryobolaceae
Genus	Rattus	Dacryobolus
Species	Rattus norvegicus	Dacryobolus sudans

Conservation Status

Brown Rat

LC — Least Concern

Weeping Toothcrust

VU — Vulnerable

Physical Characteristics

Attribute	Brown Rat	Weeping Toothcrust
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).

Weeping Toothcrust

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Brazil). 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 6 countries:

🇧🇪 Belgium 🇧🇷 Brazil 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇹🇼 Taiwan