Blind Small-eared Shrew vs common shrew

Cryptotis niausa compared with Sorex araneus

Key Differences

• Blind Small-eared Shrew is Data Deficient while common shrew is Least Concern.

Taxonomic Classification

Rank	Blind Small-eared Shrew	common shrew
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Soricomorpha (Soricomorpha)	Soricomorpha (Soricomorpha)
Family same	Soricidae	Soricidae
Genus	Cryptotis	Sorex
Species	Cryptotis niausa	Sorex araneus

Evolutionary Relationship

Blind Small-eared Shrew and common shrew share a common ancestor at the Family level: Soricidae.

Conservation Status

Blind Small-eared Shrew

DD — Data Deficient

common shrew

LC — Least Concern

Physical Characteristics

Attribute	Blind Small-eared Shrew	common shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blind Small-eared Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

common shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (5 countries) and North America (United States).

Blind Small-eared Shrew

The Blind Small-eared Shrew (Cryptotis niausa) is a species in the genus Cryptotis. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

common shrew

<em>Sorex araneus</em>, the common shrew, is a small insectivorous mammal in the family Soricidae, order Eulipotyphla, widely distributed across Europe and portions of the United States and Russia. This species inhabits a broad range of terrestrial environments including woodland, grassland, scrubland, hedgerows, and suburban gardens, typically favoring areas with dense ground cover providing both shelter and hunting opportunities. <em>Sorex araneus</em> is among the smallest mammals, with an exceptionally high metabolic rate that necessitates nearly continuous feeding to survive — it must consume close to its own body weight in food each day. Its diet consists primarily of invertebrates including earthworms, beetles, spiders, and other small arthropods found in leaf litter and soil. The species is listed as Least Concern by the IUCN, with large and stable populations across its range. Biological traits for this species remain poorly documented in the scientific literature in terms of precise standardized averages for lifespan, body length, and weight across populations, though it is known to be a short-lived species with typical wild lifespans of around one year, and is widely studied as a model organism in ecological and physiological research.