Caspian Shrew vs Common Eider

Crocidura caspica compared with Somateria mollissima

Key Differences

• Caspian Shrew is Data Deficient while Common Eider is Near Threatened.

Taxonomic Classification

Rank	Caspian Shrew	Common Eider
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Soricomorpha (Soricomorpha)	Anseriformes (Anseriformes)
Family	Soricidae	Anatidae
Genus	Crocidura	Somateria
Species	Crocidura caspica	Somateria mollissima

Evolutionary Relationship

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

Conservation Status

Caspian Shrew

DD — Data Deficient

Common Eider

NT — Near Threatened

Physical Characteristics

Attribute	Caspian Shrew	Common Eider
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Caspian Shrew

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.

Caspian Shrew

The Caspian Shrew (Crocidura caspica) is a species in the genus Crocidura. It is currently classified as Data Deficient 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.