Eurasian beaver vs Giant Otter

Castor fiber compared with Pteronura brasiliensis

Key Differences

• Eurasian beaver is Vulnerable while Giant Otter is Endangered.

Taxonomic Classification

Rank	Eurasian beaver	Giant Otter
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Rodentia (ネズミ目)	Carnivora (ネコ目)
Family	Castoridae (Beavers)	Mustelidae (Weasels & Otters)
Genus	Castor (Beavers)	Pteronura
Species	Castor fiber	Pteronura brasiliensis

Evolutionary Relationship

Eurasian beaver and Giant Otter share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

Eurasian beaver

VU — Vulnerable

Giant Otter

EN — Endangered

Physical Characteristics

Attribute	Eurasian beaver	Giant Otter
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.

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as 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。