Canadian beaver vs Dwarf Spikemoss

Castor canadensis compared with Selaginella rupestris

Taxonomic Classification

Rank	Canadian beaver	Dwarf Spikemoss
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Tracheophyta
Class	Mammalia (哺乳類)	Lycopodiopsida (ヒカゲノカズラ綱)
Order	Rodentia (ネズミ目)	Selaginellales (イワヒバ目)
Family	Castoridae (Beavers)	Selaginellaceae
Genus	Castor (Beavers)	Selaginella
Species	Castor canadensis	Selaginella rupestris

Conservation Status

Canadian beaver

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Dwarf Spikemoss

NE — Not Evaluated

Physical Characteristics

Attribute	Canadian beaver	Dwarf Spikemoss
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).

Dwarf Spikemoss

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Canada, Norway, and United States.

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。