Giant Otter vs Gray Red-backed Vole

Pteronura brasiliensis compared with Myodes rufocanus

Key Differences

• Giant Otter is Endangered while Gray Red-backed Vole is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Gray Red-backed Vole
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Carnivora (ネコ目)	Rodentia (ネズミ目)
Family	Mustelidae (Weasels & Otters)	Cricetidae
Genus	Pteronura	Myodes
Species	Pteronura brasiliensis	Myodes rufocanus

Evolutionary Relationship

Giant Otter and Gray Red-backed Vole share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

Giant Otter

EN — Endangered

Gray Red-backed Vole

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Gray Red-backed 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.

Gray Red-backed Vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Norway.