Pacific Spiny-rat vs Redhead

Proechimys decumanus compared with Aythya americana

Key Differences

• Pacific Spiny-rat is Near Threatened while Redhead is Not Evaluated.

Taxonomic Classification

Rank	Pacific Spiny-rat	Redhead
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Anseriformes (Anseriformes)
Family	Echimyidae	Anatidae
Genus	Proechimys	Aythya
Species	Proechimys decumanus	Aythya americana

Evolutionary Relationship

Pacific Spiny-rat and Redhead share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Pacific Spiny-rat

NT — Near Threatened

Redhead

NE — Not Evaluated

Physical Characteristics

Attribute	Pacific Spiny-rat	Redhead
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Redhead

Habitat

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

Range

Found across Europe (7 countries) and North America (United States).

Redhead

Redhead (Aythya americana) 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.