Giant Otter vs Tufted Duck

Pteronura brasiliensis compared with Aythya fuligula

Key Differences

• Giant Otter is Endangered while Tufted Duck is Least Concern.

Taxonomic Classification

Rank	Giant Otter	Tufted Duck
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	Aythya
Species	Pteronura brasiliensis	Aythya fuligula

Evolutionary Relationship

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

Conservation Status

Giant Otter

EN — Endangered

Tufted Duck

LC — Least Concern

Physical Characteristics

Attribute	Giant Otter	Tufted Duck
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.

Tufted Duck

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and North America (United States).

Tufted Duck

Tufted Duck (Aythya fuligula) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.