Common Eider vs Pernambuco Dwarf Porcupine

Somateria mollissima compared with Coendou speratus

Key Differences

• Common Eider is Near Threatened while Pernambuco Dwarf Porcupine is Endangered.

Taxonomic Classification

Rank	Common Eider	Pernambuco Dwarf Porcupine
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Rodentia (Rodents)
Family	Anatidae	Erethizontidae
Genus	Somateria	Coendou
Species	Somateria mollissima	Coendou speratus

Evolutionary Relationship

Common Eider and Pernambuco Dwarf Porcupine share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Eider

NT — Near Threatened

Pernambuco Dwarf Porcupine

EN — Endangered

Physical Characteristics

Attribute	Common Eider	Pernambuco Dwarf Porcupine
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Eider

Habitat

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

Range

Found across Europe (5 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Pernambuco Dwarf Porcupine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Eider

Common Eider (Somateria mollissima) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.