Green Sea Turtle vs ハワイガン

Chelonia mydas compared with Branta sandvicensis

Key Differences

• Green Sea Turtle is Endangered while ハワイガン is Near Threatened.

Taxonomic Classification

Rank	Green Sea Turtle	ハワイガン
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)	Aves (鳥類)
Order	Testudines (カメ)	Anseriformes (カモ目)
Family	Cheloniidae (Sea Turtles)	Anatidae
Genus	Chelonia (Green Sea Turtles)	Branta
Species	Chelonia mydas	Branta sandvicensis

Evolutionary Relationship

Green Sea Turtle and ハワイガン 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 ↓

ハワイガン

NT — Near Threatened

Physical Characteristics

Attribute	Green Sea Turtle	ハワイガン
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.

ハワイガン

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Asia (United Arab Emirates) and Europe (5 countries). 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。

ハワイガン

ハワイガン（Branta sandvicensis）は、IUCNレッドリストで準絶滅危惧（NT）に分類されています。絶滅危惧の基準に近く、保全措置がなければ個体群が脆弱になる可能性があります。