Arctic skate vs Canadian beaver

Amblyraja hyperborea compared with Castor canadensis

Key Differences

Arctic skate is Least Concern while Canadian beaver is Not Evaluated.

Taxonomic Classification

Rank	Arctic skate	Canadian beaver
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Elasmobranchii	Mammalia (哺乳類)
Order	Rajiformes (ガンギエイ目)	Rodentia (ネズミ目)
Family	Rajidae	Castoridae (Beavers)
Genus	Amblyraja	Castor (Beavers)
Species	Amblyraja hyperborea	Castor canadensis

Evolutionary Relationship

Arctic skate and Canadian beaver share a common ancestor at the Phylum level: Chordata. (脊索動物)

表示 Phylum: Chordata

Conservation Status

Arctic skate

LC — Least Concern

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Physical Characteristics

Attribute	Arctic skate	Canadian beaver
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	25.0 kg

Habitat & Geographic Range

Arctic skate

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Norway.

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).

Arctic skate

The Arctic skate (Amblyraja hyperborea) is a species in the genus Amblyraja. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Canadian beaver

北米最大の齧歯類であるカナダビーバーは体重32kgにも達し、カナダ・米国北部の河川、湖沼、湿地に生息する優れた生態系エンジニアです。木を倒して数百メートルに及ぶダムを造ることで池を形成し、数百種の生息環境を提供します。その巣穴や運河は流域全体を変化させます。かつては毛皮のために絶滅寸前まで狩られましたが、個体数は大きく回復しています。