Eurasian beaver vs Namdapha Flying Squirrel

Castor fiber compared with Biswamoyopterus biswasi

Key Differences

• Eurasian beaver is Vulnerable while Namdapha Flying Squirrel is Critically Endangered.

Taxonomic Classification

Rank	Eurasian beaver	Namdapha Flying Squirrel
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 same	Rodentia (啮齿目)	Rodentia (啮齿目)
Family	Castoridae (Beavers)	Sciuridae (Squirrels)
Genus	Castor (Beavers)	Biswamoyopterus
Species	Castor fiber	Biswamoyopterus biswasi

Evolutionary Relationship

Eurasian beaver and Namdapha Flying Squirrel share a common ancestor at the Order level: Rodentia. (啮齿目)

Conservation Status

Eurasian beaver

VU — Vulnerable

Namdapha Flying Squirrel

CR — Critically Endangered

Physical Characteristics

Attribute	Eurasian beaver	Namdapha Flying Squirrel
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.

Namdapha Flying Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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。