Eurasian beaver vs Fly Agaric

Castor fiber compared with Amanita muscaria

Key Differences

Eurasian beaver is Vulnerable while Fly Agaric is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Fly Agaric
Kingdom	Animalia (動物)	Fungi (菌界)
Phylum	Chordata (脊索動物)	Basidiomycota (担子菌門)
Class	Mammalia (哺乳類)	Agaricomycetes (真正担子菌綱)
Order	Rodentia (ネズミ目)	Agaricales (ハラタケ目)
Family	Castoridae (Beavers)	Agaricaceae (Agarics)
Genus	Castor (Beavers)	Amanita (Amanitas)
Species	Castor fiber	Amanita muscaria

Conservation Status

Eurasian beaver

VU — Vulnerable

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Eurasian beaver	Fly Agaric
Diet	—	Decomposer
Average Lifespan	—	1 years
Average Length	—	20 cm
Average Weight	—	100 g

Habitat & Geographic Range

Eurasian beaver

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Fly Agaric

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Brazil, Chile, Colombia).

Eurasian beaver

ユーラシアビーバー（Castor fiber）はIUCNレッドリストで絶滅危惧II類（VU）に分類されています。個体群の減少と生息地への圧力の増大により、野生での絶滅危険度が高い状況に直面しています。

Fly Agaric

ベニテングタケ（Amanita muscaria）は地球上で最も象徴的で広く知られる菌類であり、北半球の北方林全域に白いいぼのある鮮やかな赤い傘を広げる。童話のような外見とは裏腹に、ムシモールやイボテン酸などの強力な向精神性化合物を含み、中程度の毒性がある。シラカバ、マツ、トウヒと重要な外生菌根共生関係を形成し、無機栄養素と炭素を交換することで北方林の栄養循環に不可欠な役割を担っている。