European otter vs Hooktail skate

Lutra lutra compared with Dipturus oregoni

Key Differences

• European otter is Vulnerable while Hooktail skate is Least Concern.

Taxonomic Classification

Rank	European otter	Hooktail skate
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Carnivora (Carnivorans)	Rajiformes (Rajiformes)
Family	Mustelidae (Weasels & Otters)	Rajidae
Genus	Lutra (Otters)	Dipturus
Species	Lutra lutra	Dipturus oregoni

Evolutionary Relationship

European otter and Hooktail skate share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

Hooktail skate

LC — Least Concern

Physical Characteristics

Attribute	European otter	Hooktail skate
Diet	Carnivore	—
Average Lifespan	10 years	—
Average Length	1.0 m	—
Average Weight	10.0 kg	—

Habitat & Geographic Range

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.

Hooktail skate

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.