Giant Otter vs Sparsetooth dogfish

Pteronura brasiliensis compared with Scymnodalatias oligodon

Key Differences

• Giant Otter is Endangered while Sparsetooth dogfish is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Sparsetooth dogfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Carnivora (Carnivorans)	Squaliformes (Squaliformes)
Family	Mustelidae (Weasels & Otters)	Somniosidae
Genus	Pteronura	Scymnodalatias
Species	Pteronura brasiliensis	Scymnodalatias oligodon

Evolutionary Relationship

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

Conservation Status

Giant Otter

EN — Endangered

Sparsetooth dogfish

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Sparsetooth dogfish
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.

Sparsetooth dogfish

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.