European otter vs волк

Lutra lutra compared with Canis lupus

Key Differences

• European otter is Vulnerable while волк is Critically Endangered.
• волк is 4.5x heavier than European otter.
• волк lives longer (13 years vs 10 years).

Taxonomic Classification

Rank	European otter	волк
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order same	Carnivora (хищные)	Carnivora (хищные)
Family	Mustelidae (Weasels & Otters)	Canidae (Dogs & Wolves)
Genus	Lutra (Otters)	Canis (Dogs & Wolves)
Species	Lutra lutra	Canis lupus

Evolutionary Relationship

European otter and волк share a common ancestor at the Order level: Carnivora. (хищные)

Conservation Status

European otter

VU — Vulnerable

Trend: Stable →

волк

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

Physical Characteristics

Attribute	European otter	волк
Diet	Carnivore	Carnivore
Average Lifespan	10 years	13 years
Average Length	1.0 m	1.6 m
Average Weight	10.0 kg	45.0 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.

волк

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, deserts and xeric shrublands, and tropical and subtropical dry broadleaf forests, among 13 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Seychelles), Asia (Japan), Europe (5 countries), North America (7 countries), Oceania and the Pacific (Marshall Islands, Vanuatu), and South America (5 countries). Currently classified as Critically Endangered 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.

волк

The most widely distributed wild canid, gray wolves range from North America across Eurasia in diverse habitats including tundra, forests, and grasslands. Highly social animals living in family packs led by a dominant breeding pair. As keystone predators, wolves regulate prey populations and profoundly shape ecosystem structure, as demonstrated by their reintroduction in Yellowstone. Once heavily persecuted, populations are recovering in many regions.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden