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 (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Rodentia (啮齿目)	Carnivora (食肉目)
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. (哺乳動物)

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

欧亚河狸（Castor fiber）在IUCN红色名录中被列为易危（VU）。面临野外高度濒危风险，种群数量下降，栖息地压力日益增大。