Brown Rat vs Irish Threadwort

Rattus norvegicus compared with Telaranea nematodes

Key Differences

• Brown Rat is Least Concern while Irish Threadwort is Not Evaluated.

Taxonomic Classification

Rank	Brown Rat	Irish Threadwort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Marchantiophyta (liverwort)
Class	Mammalia (Mammals)	Jungermanniopsida (Jungermanniopsida)
Order	Rodentia (Rodents)	Jungermanniales (Jungermanniales)
Family	Muridae (Mice & Rats)	Lepidoziaceae
Genus	Rattus	Telaranea
Species	Rattus norvegicus	Telaranea nematodes

Conservation Status

Brown Rat

LC — Least Concern

Irish Threadwort

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Rat	Irish Threadwort
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).

Irish Threadwort

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil and Colombia.

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:

🇧🇷 Brazil 🇨🇴 Colombia