Giant Otter vs Rough-Tailed

Pteronura brasiliensis compared with Bathytoshia centroura

Key Differences

• Giant Otter is Endangered while Rough-Tailed is Vulnerable.

Taxonomic Classification

Rank	Giant Otter	Rough-Tailed
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Carnivora (Carnivorans)	Myliobatiformes (Myliobatiformes)
Family	Mustelidae (Weasels & Otters)	Dasyatidae
Genus	Pteronura	Bathytoshia
Species	Pteronura brasiliensis	Bathytoshia centroura

Evolutionary Relationship

Giant Otter and Rough-Tailed share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Giant Otter

EN — Endangered

Rough-Tailed

VU — Vulnerable

Physical Characteristics

Attribute	Giant Otter	Rough-Tailed
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.

Rough-Tailed