Eurasian beaver vs Honolulu Cyanea

Castor fiber compared with Cyanea acuminata

Key Differences

• Eurasian beaver is Vulnerable while Honolulu Cyanea is Critically Endangered.

Taxonomic Classification

Rank	Eurasian beaver	Honolulu Cyanea
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Cnidaria (Cnidarians)
Class	Mammalia (Mammals)	Scyphozoa (Scyphozoa)
Order	Rodentia (Rodents)	Semaeostomeae (Semaeostomeae)
Family	Castoridae (Beavers)	Cyaneidae
Genus	Castor (Beavers)	Cyanea
Species	Castor fiber	Cyanea acuminata

Evolutionary Relationship

Eurasian beaver and Honolulu Cyanea share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Eurasian beaver

VU — Vulnerable

Honolulu Cyanea

CR — Critically Endangered

Physical Characteristics

Attribute	Eurasian beaver	Honolulu Cyanea
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.

Honolulu Cyanea

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.