Canadian beaver vs She Crab

Castor canadensis compared with Geothelphusa tsayae

Key Differences

• Canadian beaver is Not Evaluated while She Crab is Least Concern.

Taxonomic Classification

Rank	Canadian beaver	She Crab
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Arthropoda (节肢动物门)
Class	Mammalia (哺乳動物)	Malacostraca (软甲纲)
Order	Rodentia (啮齿目)	Decapoda (十足目)
Family	Castoridae (Beavers)	Potamidae
Genus	Castor (Beavers)	Geothelphusa
Species	Castor canadensis	Geothelphusa tsayae

Evolutionary Relationship

Canadian beaver and She Crab share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

She Crab

LC — Least Concern

Physical Characteristics

Attribute	Canadian beaver	She Crab
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).

She Crab

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Taiwan.

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。