Black-tailed Deermouse vs European otter

Peromyscus melanurus compared with Lutra lutra

Key Differences

• Black-tailed Deermouse is Endangered while European otter is Vulnerable.

Taxonomic Classification

Rank	Black-tailed Deermouse	European otter
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Mammalia (lớp Thú)	Mammalia (lớp Thú)
Order	Rodentia (Bộ Gặm nhấm)	Carnivora (bộ Ăn thịt)
Family	Cricetidae	Mustelidae (Weasels & Otters)
Genus	Peromyscus	Lutra (Otters)
Species	Peromyscus melanurus	Lutra lutra

Evolutionary Relationship

Black-tailed Deermouse and European otter share a common ancestor at the Class level: Mammalia. (lớp Thú)

Conservation Status

Black-tailed Deermouse

EN — Endangered

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	Black-tailed Deermouse	European otter
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

Black-tailed Deermouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

European otter

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-tailed Deermouse

The Black-tailed Deermouse (Peromyscus melanurus) is a species in the genus Peromyscus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

European otter

Sleek semi-aquatic mustelid found along clean rivers, streams, and coastlines across Europe and Asia. European otters can reach 1.3 meters in length and are highly skilled fish hunters, using sensitive whiskers to detect prey movements. Requiring unpolluted water with abundant fish, they are an indicator species for freshwater ecosystem health. Once nearly extinct in Western Europe from hunting and pollution, populations have recovered significantly following water quality improvements.