Circular Ear Shell vs Eurasian beaver

Haliotis cyclobates compared with Castor fiber

Key Differences

• Circular Ear Shell is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Circular Ear Shell	Eurasian beaver
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Mollusca (软体动物门)	Chordata (脊索动物门)
Class	Gastropoda (腹足纲)	Mammalia (哺乳動物)
Order	Lepetellida (深海白笠目)	Rodentia (啮齿目)
Family	Haliotidae	Castoridae (Beavers)
Genus	Haliotis	Castor (Beavers)
Species	Haliotis cyclobates	Castor fiber

Evolutionary Relationship

Circular Ear Shell and Eurasian beaver share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Circular Ear Shell

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Circular Ear Shell	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Circular Ear Shell

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

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.

Circular Ear Shell

The Circular Ear Shell (Haliotis cyclobates) is a species in the genus Haliotis. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

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。