Circular Ear Shell vs koala

Haliotis cyclobates compared with Phascolarctos cinereus

Key Differences

• Circular Ear Shell is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Circular Ear Shell	koala
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Mollusca (軟体動物)	Chordata (脊索動物)
Class	Gastropoda (腹足綱)	Mammalia (哺乳類)
Order	Lepetellida (Lepetellida)	Diprotodontia (カンガルー目)
Family	Haliotidae	Phascolarctidae (Koalas)
Genus	Haliotis	Phascolarctos (Koalas)
Species	Haliotis cyclobates	Phascolarctos cinereus

Evolutionary Relationship

Circular Ear Shell and koala share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Circular Ear Shell

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Circular Ear Shell	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Circular Ear Shell

Habitat

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

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia. 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.

koala

オーストラリア東部・南東部を代表する有袋類で、体重は最大15kgに達し、低カロリーのユーカリの葉食から得るエネルギーを節約するために1日最大22時間を睡眠に費やす。他の哺乳類の多くを死に至らしめる有毒なユーカリ成分を処理するために高度に特化しており、解毒に特別に適応した腸内微生物叢を持つ。クラミジア感染症、生息地の伐採、気候変動により個体数が激減し、2022年に絶滅危惧種に指定された。