Canadian beaver vs Eurasian water shrew

Castor canadensis compared with Neomys fodiens

Key Differences

• Canadian beaver is Not Evaluated while Eurasian water shrew is Endangered.

Taxonomic Classification

Rank	Canadian beaver	Eurasian water shrew
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Rodentia (啮齿目)	Soricomorpha (鼩形目)
Family	Castoridae (Beavers)	Soricidae
Genus	Castor (Beavers)	Neomys
Species	Castor canadensis	Neomys fodiens

Evolutionary Relationship

Canadian beaver and Eurasian water shrew share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Eurasian water shrew

EN — Endangered

Physical Characteristics

Attribute	Canadian beaver	Eurasian water shrew
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	25.0 kg	—

Habitat & Geographic Range

Canadian beaver

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).

Eurasian water shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Russia, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Canadian beaver

北美最大的啮齿动物加拿大河狸体重可达32公斤，是栖息于加拿大和美国北部河流、湖泊和湿地的杰出生态系统工程师。通过伐木和建造可达数百米的水坝形成水塘，为数百种物种提供生境。其巢穴和运河改变了整个流域。曾因毛皮贸易被猎杀至濒临灭绝，但种群已大幅恢复。

Eurasian water shrew

欧洲水鼩鼱（Neomys fodiens）在IUCN红色名录中被列为濒危（EN）物种。在野外面临高度灭绝风险，种群数量显著下降，生存面临持续威胁。

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden