Common Eider vs Orinoco Four-eyed Opossum

Somateria mollissima compared with Philander deltae

Key Differences

• Common Eider is Near Threatened while Orinoco Four-eyed Opossum is Least Concern.

Taxonomic Classification

Rank	Common Eider	Orinoco Four-eyed Opossum
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Aves (นก)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Anseriformes (อันดับห่าน)	Didelphimorphia (Didelphimorphia)
Family	Anatidae	Didelphidae
Genus	Somateria	Philander
Species	Somateria mollissima	Philander deltae

Evolutionary Relationship

Common Eider and Orinoco Four-eyed Opossum share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

Common Eider

NT — Near Threatened

Orinoco Four-eyed Opossum

LC — Least Concern

Physical Characteristics

Attribute	Common Eider	Orinoco Four-eyed Opossum
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.

Orinoco Four-eyed Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.

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.