Giant Otter vs Narrow-headed Vole

Pteronura brasiliensis compared with Microtus gregalis

Key Differences

• Giant Otter is Endangered while Narrow-headed Vole is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Narrow-headed Vole
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Mammalia (lớp Thú)	Mammalia (lớp Thú)
Order	Carnivora (bộ Ăn thịt)	Rodentia (Bộ Gặm nhấm)
Family	Mustelidae (Weasels & Otters)	Cricetidae
Genus	Pteronura	Microtus
Species	Pteronura brasiliensis	Microtus gregalis

Evolutionary Relationship

Giant Otter and Narrow-headed Vole share a common ancestor at the Class level: Mammalia. (lớp Thú)

Conservation Status

Giant Otter

EN — Endangered

Narrow-headed Vole

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Narrow-headed Vole
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Narrow-headed Vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.