Brown Rat vs White Saddle

Rattus norvegicus compared with Helvella crispa

Taxonomic Classification

Rank	Brown Rat	White Saddle
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Pezizomycetes (Pezizomycetes)
Order	Rodentia (Rodents)	Pezizales (Pezizales)
Family	Muridae (Mice & Rats)	Helvellaceae
Genus	Rattus	Helvella
Species	Rattus norvegicus	Helvella crispa

Conservation Status

Brown Rat

LC — Least Concern

White Saddle

LC — Least Concern

Physical Characteristics

Attribute	Brown Rat	White Saddle
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).

White Saddle

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Sweden, and United States.

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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden 🇺🇸 United States