Eurasian beaver vs Shark

Castor fiber compared with Carcharhinus porosus

Key Differences

• Eurasian beaver is Vulnerable while Shark is Critically Endangered.

Taxonomic Classification

Rank	Eurasian beaver	Shark
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Chondrichthyes (軟骨魚綱)
Order	Rodentia (ネズミ目)	Carcharhiniformes (メジロザメ目)
Family	Castoridae (Beavers)	Carcharhinidae
Genus	Castor (Beavers)	Carcharhinus
Species	Castor fiber	Carcharhinus porosus

Evolutionary Relationship

Eurasian beaver and Shark share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Eurasian beaver

VU — Vulnerable

Shark

CR — Critically Endangered

Physical Characteristics

Attribute	Eurasian beaver	Shark
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.

Shark

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 5 distinct biome types within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Venezuela. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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。