European otter vs False Dotted Border

Lutra lutra compared with Belenois thysa

Key Differences

• European otter is Vulnerable while False Dotted Border is Least Concern.

Taxonomic Classification

Rank	European otter	False Dotted Border
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Carnivora (Carnivorans)	Lepidoptera (Butterflies & Moths)
Family	Mustelidae (Weasels & Otters)	Pieridae
Genus	Lutra (Otters)	Belenois
Species	Lutra lutra	Belenois thysa

Evolutionary Relationship

European otter and False Dotted Border share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

False Dotted Border

LC — Least Concern

Physical Characteristics

Attribute	European otter	False Dotted Border
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.

False Dotted Border

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

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.