Andean walnut vs Brown Rat

Juglans neotropica compared with Rattus norvegicus

Key Differences

Andean walnut is Endangered while Brown Rat is Least Concern.

Taxonomic Classification

Rank	Andean walnut	Brown Rat
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Fagales (Beeches & Oaks)	Rodentia (Rodents)
Family	Juglandaceae	Muridae (Mice & Rats)
Genus	Juglans	Rattus
Species	Juglans neotropica	Rattus norvegicus

Conservation Status

Andean walnut

EN — Endangered

Brown Rat

LC — Least Concern

Physical Characteristics

Attribute	Andean walnut	Brown Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Andean walnut

Habitat

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

Range

Found in Colombia. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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).

Andean walnut

The Andean walnut (Juglans neotropica) is a species in the genus Juglans. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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.