Common Bithynia vs Red Fox

Bithynia tentaculata compared with Vulpes vulpes

Taxonomic Classification

Rank	Common Bithynia	Red Fox
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Mollusca (软体动物门)	Chordata (脊索动物门)
Class	Gastropoda (腹足纲)	Mammalia (哺乳動物)
Order	Littorinimorpha (滨螺形目)	Carnivora (食肉目)
Family	Bithyniidae	Canidae (Dogs & Wolves)
Genus	Bithynia	Vulpes (Foxes)
Species	Bithynia tentaculata	Vulpes vulpes

Evolutionary Relationship

Common Bithynia and Red Fox share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Common Bithynia

LC — Least Concern

Red Fox

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Common Bithynia	Red Fox
Diet	—	Omnivore
Average Lifespan	—	5 years
Average Length	—	70 cm
Average Weight	—	6.0 kg

Habitat & Geographic Range

Common Bithynia

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

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 Bithynia

The common bithynia (<em>Bithynia tentaculata</em>) is a freshwater gastropod snail belonging to the family Bithyniidae. It is classified as Least Concern on the IUCN Red List and has been recorded across terrestrial and aquatic habitats in Belgium, Denmark, Norway, Sweden, and the United States. <em>Bithynia tentaculata</em> typically inhabits slow-moving or still freshwater environments such as lakes, ponds, canals, and rivers, often on muddy or sandy substrates where organic material is abundant. The species has a distinctive operculum that seals the shell opening, providing protection against desiccation and predators. It typically feeds by grazing on algae, detritus, and biofilms on submerged surfaces. The common bithynia serves as an intermediate host for several trematode parasites, making it ecologically significant in freshwater food webs and parasite life cycles. Biological traits of this species remain poorly documented in the scientific literature.

Red Fox

赤狐（Vulpes vulpes）是地球上分布最广的野生肉食动物，在北半球及澳大利亚引入区域，从北极冻原到城市环境的各类栖息地均有分布。以锈红色皮毛、白色腹部和蓬松尾巴为特征。高度适应性强的杂食者，从兔子、田鼠到水果、人类垃圾无所不食。可用40余种不同的叫声进行交流。

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States