common river snail vs Red Fox

Viviparus viviparus compared with Vulpes vulpes

Taxonomic Classification

Rank	common river snail	Red Fox
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Architaenioglossa (Architaenioglossa)	Carnivora (Carnivorans)
Family	Viviparidae	Canidae (Dogs & Wolves)
Genus	Viviparus	Vulpes (Foxes)
Species	Viviparus viviparus	Vulpes vulpes

Evolutionary Relationship

common river snail and Red Fox share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

common river snail

LC — Least Concern

Red Fox

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	common river snail	Red Fox
Diet	—	Omnivore
Average Lifespan	—	5 years
Average Length	—	70 cm
Average Weight	—	6.0 kg

Habitat & Geographic Range

common river snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found across Europe (7 countries).

Red Fox

Habitat

Typically found in a wide range of habitat types.

Range

Widely distributed across Asia (Cyprus, Israel), Europe (8 countries), North America (United States), Oceania and the Pacific (Australia), and South America (Argentina).

common river snail

<em>Viviparus viviparus</em>, the common river snail, is a freshwater gastropod mollusk in the family Viviparidae, order Architaenioglossa. It is distributed across Europe, with populations documented in Austria, Belgium, Bulgaria, Czech Republic, France, Germany, and Hungary, among other countries, typically inhabiting slow-moving and still freshwater bodies including rivers, canals, ponds, and ditches. The species is assessed as Least Concern on the IUCN Red List. Common river snails typically live in soft-sediment benthic habitats, grazing on algae, aquatic plant material, and organic detritus using a radula — a ribbon-like feeding organ characteristic of gastropods. <em>Viviparus viviparus</em> is notable among freshwater mollusks for being viviparous, giving birth to fully formed juvenile snails rather than laying eggs, an adaptation reflected in both the genus and family names. This reproductive strategy typically results in small litter sizes but high juvenile survival compared to egg-laying mollusks. The species plays a role in benthic nutrient cycling and serves as prey for waterfowl, fish, and crayfish. Biological traits such as precise lifespan, body measurements, and population density data vary across localities and remain incompletely documented in comprehensive studies.

Red Fox

The most widespread wild carnivore on Earth, red foxes have colonized habitats from Arctic tundra to urban environments across the Northern Hemisphere and introduced ranges in Australia. Recognized by their russet coat, white belly, and bushy tail. Highly adaptable omnivores, red foxes eat everything from rabbits and voles to fruit and human refuse. They communicate with over 40 distinct vocalizations.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden