Giant Otter vs Sharp-tooth smooth hound

Pteronura brasiliensis compared with Mustelus dorsalis

Key Differences

• Giant Otter is Endangered while Sharp-tooth smooth hound is Vulnerable.

Taxonomic Classification

Rank	Giant Otter	Sharp-tooth smooth hound
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Carnivora (Carnivorans)	Carcharhiniformes (Ground Sharks)
Family	Mustelidae (Weasels & Otters)	Triakidae
Genus	Pteronura	Mustelus
Species	Pteronura brasiliensis	Mustelus dorsalis

Evolutionary Relationship

Giant Otter and Sharp-tooth smooth hound share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Giant Otter

EN — Endangered

Sharp-tooth smooth hound

VU — Vulnerable

Physical Characteristics

Attribute	Giant Otter	Sharp-tooth smooth hound
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.

Sharp-tooth smooth hound

Habitat

Typically found in marine environments from coastal waters to deep ocean.