Caspian Shrew vs Lesser Scaup

Crocidura caspica compared with Aythya affinis

Key Differences

• Caspian Shrew is Data Deficient while Lesser Scaup is Least Concern.

Taxonomic Classification

Rank	Caspian Shrew	Lesser Scaup
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	Aythya
Species	Crocidura caspica	Aythya affinis

Evolutionary Relationship

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

Conservation Status

Caspian Shrew

DD — Data Deficient

Lesser Scaup

LC — Least Concern

Physical Characteristics

Attribute	Caspian Shrew	Lesser Scaup
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Caspian Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Lesser Scaup

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

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.

Lesser Scaup

Lesser Scaup (Aythya affinis) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.