Giant Otter vs Large Japanese Field Mouse

Pteronura brasiliensis compared with Apodemus speciosus

Key Differences

• Giant Otter is Endangered while Large Japanese Field Mouse is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Large Japanese Field Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Carnivora (Carnivorans)	Rodentia (Rodents)
Family	Mustelidae (Weasels & Otters)	Muridae (Mice & Rats)
Genus	Pteronura	Apodemus
Species	Pteronura brasiliensis	Apodemus speciosus

Evolutionary Relationship

Giant Otter and Large Japanese Field Mouse share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Giant Otter

EN — Endangered

Large Japanese Field Mouse

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Large Japanese Field Mouse
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.

Large Japanese Field Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.