Green Sea Turtle vs Amerika-aka-ei

Chelonia mydas compared with Hypanus americanus

Key Differences

• Green Sea Turtle is Endangered while Amerika-aka-ei is Near Threatened.

Taxonomic Classification

Rank	Green Sea Turtle	Amerika-aka-ei
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Reptilia (爬虫類)	Elasmobranchii
Order	Testudines (カメ)	Myliobatiformes (トビエイ目)
Family	Cheloniidae (Sea Turtles)	Dasyatidae
Genus	Chelonia (Green Sea Turtles)	Hypanus
Species	Chelonia mydas	Hypanus americanus

Evolutionary Relationship

Green Sea Turtle and Amerika-aka-ei share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Amerika-aka-ei

NT — Near Threatened

Physical Characteristics

Attribute	Green Sea Turtle	Amerika-aka-ei
Diet	Herbivore	—
Average Lifespan	80 years	—
Average Length	1.2 m	—
Average Weight	200.0 kg	—

Habitat & Geographic Range

Green Sea Turtle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Australia, Brazil, Costa Rica, Indonesia, and Mexico. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Amerika-aka-ei

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

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

Green Sea Turtle

アオウミガメは最も大きなウミガメの一つです。甲羅ではなく軟骨と脂肪の緑色に由来して名付けられました。