Chinese river dolphin vs Common Eider

Lipotes vexillifer compared with Somateria mollissima

Key Differences

• Chinese river dolphin is Critically Endangered while Common Eider is Near Threatened.

Taxonomic Classification

Rank	Chinese river dolphin	Common Eider
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Anseriformes (Anseriformes)
Family	Lipotidae	Anatidae
Genus	Lipotes	Somateria
Species	Lipotes vexillifer	Somateria mollissima

Evolutionary Relationship

Chinese river dolphin and Common Eider share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Chinese river dolphin

CR — Critically Endangered

Common Eider

NT — Near Threatened

Physical Characteristics

Attribute	Chinese river dolphin	Common Eider
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chinese river dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

Chinese river dolphin

The Chinese River Dolphin (Lipotes vexillifer) is a species in the genus Lipotes. It is currently classified as Critically Endangered on the IUCN Red List.

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.