Ferruginous Duck vs Giant Otter

Aythya nyroca compared with Pteronura brasiliensis

Key Differences

• Ferruginous Duck is Not Evaluated while Giant Otter is Endangered.

Taxonomic Classification

Rank	Ferruginous Duck	Giant Otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Carnivora (Carnivorans)
Family	Anatidae	Mustelidae (Weasels & Otters)
Genus	Aythya	Pteronura
Species	Aythya nyroca	Pteronura brasiliensis

Evolutionary Relationship

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

Conservation Status

Ferruginous Duck

NE — Not Evaluated

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Ferruginous Duck	Giant Otter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ferruginous Duck

Habitat

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

Range

Found across Asia (Taiwan) and Europe (8 countries).

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.

Ferruginous Duck

Ferruginous Duck (Aythya nyroca) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.