Giant Otter vs Surf Scoter

Pteronura brasiliensis compared with Melanitta perspicillata

Key Differences

• Giant Otter is Endangered while Surf Scoter is Not Evaluated.

Taxonomic Classification

Rank	Giant Otter	Surf Scoter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Anseriformes (Anseriformes)
Family	Mustelidae (Weasels & Otters)	Anatidae
Genus	Pteronura	Melanitta
Species	Pteronura brasiliensis	Melanitta perspicillata

Evolutionary Relationship

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

Conservation Status

Giant Otter

EN — Endangered

Surf Scoter

NE — Not Evaluated

Physical Characteristics

Attribute	Giant Otter	Surf Scoter
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.

Surf Scoter

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (5 countries) and North America (United States).