Eurasian beaver vs Koolau Tetraplasandra

Castor fiber compared with Polyscias gymnocarpa

Key Differences

• Eurasian beaver is Vulnerable while Koolau Tetraplasandra is Critically Endangered.

Taxonomic Classification

Rank	Eurasian beaver	Koolau Tetraplasandra
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Rodentia (Rodents)	Apiales (Apiales)
Family	Castoridae (Beavers)	Araliaceae
Genus	Castor (Beavers)	Polyscias
Species	Castor fiber	Polyscias gymnocarpa

Conservation Status

Eurasian beaver

VU — Vulnerable

Koolau Tetraplasandra

CR — Critically Endangered

Physical Characteristics

Attribute	Eurasian beaver	Koolau Tetraplasandra
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.

Koolau Tetraplasandra

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Eurasian beaver

Eurasian beaver (Castor fiber) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.