Canadian beaver vs Epaulard

Castor canadensis compared with Orcinus orca

Key Differences

Canadian beaver is Not Evaluated while Epaulard is Data Deficient.
Canadian beaver is herbivore while Epaulard is carnivore.
Epaulard is 216.0x heavier than Canadian beaver.
Epaulard lives longer (50 years vs 15 years).

Taxonomic Classification

Rank	Canadian beaver	Epaulard
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Rodentia (ネズミ目)	Cetacea (Whales & Dolphins)
Family	Castoridae (Beavers)	Delphinidae (Oceanic Dolphins)
Genus	Castor (Beavers)	Orcinus (Orcas)
Species	Castor canadensis	Orcinus orca

Evolutionary Relationship

Canadian beaver and Epaulard share a common ancestor at the Class level: Mammalia. (哺乳類)

表示 Class: Mammalia

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Epaulard

DD — Data Deficient

Population: ~50.0K

Trend: Unknown ?

Physical Characteristics

Attribute	Canadian beaver	Epaulard
Diet	Herbivore	Carnivore
Average Lifespan	15 years	50 years
Average Length	1.0 m	8.0 m
Average Weight	25.0 kg	5.4 t

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).

Epaulard

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador, Venezuela).

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。

Epaulard

イルカ科で最大の種であるシャチ（Orcinus orca）は体長最大9メートル、体重6トンに達し、北極から南極まですべての海洋に生息しています。独特の方言、狩猟戦略、集団間で異なる文化的伝統を持つ母系ポッドで生活する頂点捕食者です。一部の集団は魚類を、他の集団は海洋哺乳類を専門に捕食します。天敵はなく、シャチは生息するすべての海洋食物連鎖の頂点に位置します。