Brown Rat vs Ragged Notchwort

Rattus norvegicus compared with Mesoptychia heterocolpos

Taxonomic Classification

Rank	Brown Rat	Ragged Notchwort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Marchantiophyta (liverwort)
Class	Mammalia (Mammals)	Jungermanniopsida (Jungermanniopsida)
Order	Rodentia (Rodents)	Jungermanniales (Jungermanniales)
Family	Muridae (Mice & Rats)	Jungermanniaceae
Genus	Rattus	Mesoptychia
Species	Rattus norvegicus	Mesoptychia heterocolpos

Conservation Status

Brown Rat

LC — Least Concern

Ragged Notchwort

LC — Least Concern

Physical Characteristics

Attribute	Brown Rat	Ragged Notchwort
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).

Ragged Notchwort

Habitat

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

Range

Distributed across Norway, 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.