Equatorial Graytail vs European otter

Xenerpestes singularis compared with Lutra lutra

Key Differences

• Equatorial Graytail is Near Threatened while European otter is Vulnerable.

Taxonomic Classification

Rank	Equatorial Graytail	European otter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Carnivora (Carnivorans)
Family	Furnariidae	Mustelidae (Weasels & Otters)
Genus	Xenerpestes	Lutra (Otters)
Species	Xenerpestes singularis	Lutra lutra

Evolutionary Relationship

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

Conservation Status

Equatorial Graytail

NT — Near Threatened

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Equatorial Graytail

Habitat

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

Range

Distributed across Ecuador and Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway