Giant Otter vs Gray Mouse Opossum

Pteronura brasiliensis compared with Tlacuatzin canescens

Key Differences

• Giant Otter is Endangered while Gray Mouse Opossum is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Gray Mouse Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Carnivora (Carnivorans)	Didelphimorphia (Didelphimorphia)
Family	Mustelidae (Weasels & Otters)	Didelphidae
Genus	Pteronura	Tlacuatzin
Species	Pteronura brasiliensis	Tlacuatzin canescens

Evolutionary Relationship

Giant Otter and Gray Mouse Opossum share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Giant Otter

EN — Endangered

Gray Mouse Opossum

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Gray Mouse Opossum
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 Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.