Brown Rat vs Hardback Beetle

Rattus norvegicus compared with Tenebrio molitor

Taxonomic Classification

Rank	Brown Rat	Hardback Beetle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Coleoptera (Beetles)
Family	Muridae (Mice & Rats)	Tenebrionidae
Genus	Rattus	Tenebrio
Species	Rattus norvegicus	Tenebrio molitor

Evolutionary Relationship

Brown Rat and Hardback Beetle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brown Rat

LC — Least Concern

Hardback Beetle

LC — Least Concern

Physical Characteristics

Attribute	Brown Rat	Hardback Beetle
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).

Hardback Beetle

Habitat

Found across multiple habitat types including temperate coniferous forests, montane grasslands and shrublands, and deserts and xeric shrublands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan, Mongolia), Europe (9 countries), and North America (Canada, 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 13 countries:

🇧🇪 Belgium 🇨🇦 Canada 🇩🇰 Denmark 🇪🇪 Estonia 🇮🇪 Ireland 🇯🇵 Japan 🇱🇻 Latvia 🇲🇳 Mongolia 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇨🇭 Switzerland 🇺🇸 United States