Brown Rat vs Early Buttercup

Rattus norvegicus compared with Ranunculus fascicularis

Key Differences

• Brown Rat is Least Concern while Early Buttercup is Extinct.

Taxonomic Classification

Rank	Brown Rat	Early Buttercup
Kingdom	Animalia (động vật)	Plantae (thực vật)
Phylum	Chordata (động vật có dây sống)	Magnoliophyta (Flowering Plants)
Class	Mammalia (lớp Thú)	Magnoliopsida (Dicots)
Order	Rodentia (Bộ Gặm nhấm)	Ranunculales (Bộ Mao lương)
Family	Muridae (Mice & Rats)	Ranunculaceae
Genus	Rattus	Ranunculus
Species	Rattus norvegicus	Ranunculus fascicularis

Conservation Status

Brown Rat

LC — Least Concern

Early Buttercup

EX — Extinct

Physical Characteristics

Attribute	Brown Rat	Early Buttercup
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).

Early Buttercup

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Canada 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 2 countries:

🇨🇦 Canada 🇺🇸 United States