Canadian beaver vs Jack bean

Castor canadensis compared with Canavalia ensiformis

Taxonomic Classification

Rank	Canadian beaver	Jack bean
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Magnoliophyta (被子植物門)
Class	Mammalia (哺乳類)	Magnoliopsida (モクレン綱)
Order	Rodentia (ネズミ目)	Fabales (マメ目)
Family	Castoridae (Beavers)	Fabaceae
Genus	Castor (Beavers)	Canavalia
Species	Castor canadensis	Canavalia ensiformis

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Jack bean

NE — Not Evaluated

Physical Characteristics

Attribute	Canadian beaver	Jack bean
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).

Jack bean

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Africa (7 countries), Asia (4 countries), North America (Cuba, United States), Oceania and the Pacific (Australia, Marshall Islands), and South America (Argentina, Brazil, Colombia).

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。