Brown Rat vs Glabrous Catsear

Rattus norvegicus compared with Hypochaeris glabra

Key Differences

• Brown Rat is Least Concern while Glabrous Catsear is Critically Endangered.

Taxonomic Classification

Rank	Brown Rat	Glabrous Catsear
Kingdom	Animalia (hayvan)	Plantae (bitki)
Phylum	Chordata (Kordalılar)	Magnoliophyta (Flowering Plants)
Class	Mammalia (memeliler)	Magnoliopsida (Dicots)
Order	Rodentia (kemiriciler)	Asterales (Daisies & Sunflowers)
Family	Muridae (Mice & Rats)	Asteraceae (Daisy Family)
Genus	Rattus	Hypochaeris
Species	Rattus norvegicus	Hypochaeris glabra

Conservation Status

Brown Rat

LC — Least Concern

Glabrous Catsear

CR — Critically Endangered

Physical Characteristics

Attribute	Brown Rat	Glabrous Catsear
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).

Glabrous Catsear

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and Mediterranean forests and woodlands, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (India, Japan, Taiwan), Europe (5 countries), North America (4 countries), Oceania and the Pacific (Australia), and South America (5 countries). Currently classified as Critically Endangered 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 17 countries:

🇦🇷 Argentina 🇦🇺 Australia 🇧🇪 Belgium 🇧🇷 Brazil 🇨🇦 Canada 🇨🇱 Chile 🇨🇴 Colombia 🇩🇰 Denmark 🇪🇨 Ecuador 🇯🇵 Japan 🇲🇽 Mexico 🇳🇴 Norway 🇵🇹 Portugal 🇿🇦 South Africa 🇸🇪 Sweden 🇹🇼 Taiwan 🇺🇸 United States