Eurasian beaver vs Threeleaf Halberd Fern

Castor fiber compared with Tectaria trifoliata

Key Differences

• Eurasian beaver is Vulnerable while Threeleaf Halberd Fern is Near Threatened.

Taxonomic Classification

Rank	Eurasian beaver	Threeleaf Halberd Fern
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Tracheophyta
Class	Mammalia (哺乳類)	Polypodiopsida (ウラボシ綱)
Order	Rodentia (ネズミ目)	Polypodiales (ウラボシ目)
Family	Castoridae (Beavers)	Tectariaceae
Genus	Castor (Beavers)	Tectaria
Species	Castor fiber	Tectaria trifoliata

Conservation Status

Eurasian beaver

VU — Vulnerable

Threeleaf Halberd Fern

NT — Near Threatened

Physical Characteristics

Attribute	Eurasian beaver	Threeleaf Halberd Fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

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.

Threeleaf Halberd Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Brazil, Colombia, and Cuba. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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。