Leatherback Sea Turtle vs アメリカホシハジロ

Dermochelys coriacea compared with Aythya americana

Key Differences

• Leatherback Sea Turtle is Vulnerable while アメリカホシハジロ is Not Evaluated.

Taxonomic Classification

Rank	Leatherback Sea Turtle	アメリカホシハジロ
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)	Aythya
Species	Dermochelys coriacea	Aythya americana

Evolutionary Relationship

Leatherback Sea Turtle and アメリカホシハジロ share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

アメリカホシハジロ

NE — Not Evaluated

Physical Characteristics

Attribute	Leatherback Sea Turtle	アメリカホシハジロ
Diet	Carnivore	—
Average Lifespan	50 years	—
Average Length	2.0 m	—
Average Weight	500.0 kg	—

Habitat & Geographic Range

Leatherback 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 5 distinct biome types spanning the Australasia and Indomalayan and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Costa Rica, Indonesia, Malaysia, and Trinidad and Tobago. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

アメリカホシハジロ

Habitat

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

Range

Found across Europe (7 countries) and North America (United States).

Leatherback Sea Turtle

オサガメは現存する最大のカメであり、爬虫類の中で4番目に重い種です。他のカメとは異なり、硬い甲羅ではなく柔らかく革のような皮膚に覆われています。

アメリカホシハジロ

アカアタマハジロ（Aythya americana）はIUCNレッドリストで未評価（NE）に分類されている。IUCNレッドリスト基準でまだ評価されておらず、保全状況は未確定である。