Darwin s Nesoryzomys vs Eurasian beaver

Nesoryzomys darwini compared with Castor fiber

Key Differences

• Darwin s Nesoryzomys is Extinct while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Darwin s Nesoryzomys	Eurasian beaver
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	Cricetidae	Castoridae (Beavers)
Genus	Nesoryzomys	Castor (Beavers)
Species	Nesoryzomys darwini	Castor fiber

Evolutionary Relationship

Darwin s Nesoryzomys and Eurasian beaver share a common ancestor at the Order level: Rodentia. (啮齿目)

Conservation Status

Darwin s Nesoryzomys

EX — Extinct

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Darwin s Nesoryzomys	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Darwin s Nesoryzomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.

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.

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。