Circular Ear Shell vs コウテイペンギン

Haliotis cyclobates compared with Aptenodytes forsteri

Key Differences

• Circular Ear Shell is Least Concern while コウテイペンギン is Near Threatened.

Taxonomic Classification

Rank	Circular Ear Shell	コウテイペンギン
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Mollusca (軟体動物)	Chordata (脊索動物)
Class	Gastropoda (腹足綱)	Aves (鳥類)
Order	Lepetellida (Lepetellida)	Sphenisciformes (Penguins)
Family	Haliotidae	Spheniscidae (Penguins)
Genus	Haliotis	Aptenodytes (Great Penguins)
Species	Haliotis cyclobates	Aptenodytes forsteri

Evolutionary Relationship

Circular Ear Shell and コウテイペンギン share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Circular Ear Shell

LC — Least Concern

コウテイペンギン

NT — Near Threatened

Population: ~595.0K

Trend: Stable →

Physical Characteristics

Attribute	Circular Ear Shell	コウテイペンギン
Diet	—	Carnivore
Average Lifespan	—	20 years
Average Length	—	1.1 m
Average Weight	—	40.0 kg

Habitat & Geographic Range

Circular Ear Shell

Habitat

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

コウテイペンギン

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

コウテイペンギン

世界最大のペンギンであるコウテイペンギン（Aptenodytes forsteri）は体高最大1.2m、体重45kgで、地球上で最も過酷な環境の一つである南極大陸に生息しています。零下60°C以下の真冬の暗闇の中で繁殖し、雌が海上にいる間、雄が65日間足の上で育雛嚢の下に一つの卵を温め続けます。数千羽からなる群れで個体が暖かい中心部を循環するいわゆるハドリング行動は、協調的な生存戦略の傑作です。