Aquatic oligochaete worm vs gray wolf

Potamothrix bavaricus compared with Canis lupus

Key Differences

• Aquatic oligochaete worm is Not Evaluated while gray wolf is Critically Endangered.

Taxonomic Classification

Rank	Aquatic oligochaete worm	gray wolf
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Annelida (Segmented Worms)	Chordata (Chordates)
Class	Clitellata (Clitellata)	Mammalia (Mammals)
Order	Tubificida (Tubificida)	Carnivora (Carnivorans)
Family	Naididae	Canidae (Dogs & Wolves)
Genus	Potamothrix	Canis (Dogs & Wolves)
Species	Potamothrix bavaricus	Canis lupus

Evolutionary Relationship

Aquatic oligochaete worm and gray wolf share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Aquatic oligochaete worm

NE — Not Evaluated

gray wolf

CR — Critically Endangered

Population: ~300.0K

Trend: Stable →

Physical Characteristics

Attribute	Aquatic oligochaete worm	gray wolf
Diet	—	Carnivore
Average Lifespan	—	13 years
Average Length	—	1.6 m
Average Weight	—	45.0 kg

Habitat & Geographic Range

Aquatic oligochaete worm

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (7 countries) and North America (United States).

gray wolf

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.

Aquatic oligochaete worm

The Aquatic oligochaete worm (Potamothrix bavaricus) is a species in the genus Potamothrix. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

gray wolf

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 4 countries:

🇩🇰 Denmark 🇷🇺 Russia 🇸🇪 Sweden 🇺🇸 United States