Amur Hedgehog vs Common Eider

Erinaceus amurensis compared with Somateria mollissima

Key Differences

• Amur Hedgehog is Least Concern while Common Eider is Near Threatened.

Taxonomic Classification

Rank	Amur Hedgehog	Common Eider
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Erinaceomorpha (Erinaceomorpha)	Anseriformes (Anseriformes)
Family	Erinaceidae	Anatidae
Genus	Erinaceus	Somateria
Species	Erinaceus amurensis	Somateria mollissima

Evolutionary Relationship

Amur Hedgehog and Common Eider share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amur Hedgehog

LC — Least Concern

Common Eider

NT — Near Threatened

Physical Characteristics

Attribute	Amur Hedgehog	Common Eider
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amur Hedgehog

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Japan.

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.

Amur Hedgehog

The Amur Hedgehog (Erinaceus amurensis) is a species in the genus Erinaceus. It is currently classified as Least Concern on the IUCN Red List. 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.