Dusky smooth-hound vs Giant Otter

Mustelus palumbes compared with Pteronura brasiliensis

Key Differences

• Dusky smooth-hound is Least Concern while Giant Otter is Endangered.

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Dusky smooth-hound

LC — Least Concern

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Dusky smooth-hound	Giant Otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dusky smooth-hound

Habitat

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

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.