Giant Otter vs Gulf smoothhound

Pteronura brasiliensis compared with Mustelus sinusmexicanus

Key Differences

• Giant Otter is Endangered while Gulf smoothhound is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Gulf smoothhound
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 sinusmexicanus

Evolutionary Relationship

Giant Otter and Gulf smoothhound share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Giant Otter

EN — Endangered

Gulf smoothhound

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Gulf smoothhound
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.

Gulf smoothhound

Habitat

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