Green Sea Turtle vs Polar bear

Chelonia mydas compared with Ursus maritimus

Key Differences

• Green Sea Turtle is Endangered while Polar bear is Vulnerable.
• Green Sea Turtle is herbivore while Polar bear is carnivore.
• Polar bear is 2.2x heavier than Green Sea Turtle.
• Green Sea Turtle lives longer (80 years vs 25 years).

Taxonomic Classification

Rank	Green Sea Turtle	Polar bear
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)	Mammalia (哺乳類)
Order	Testudines (カメ)	Carnivora (ネコ目)
Family	Cheloniidae (Sea Turtles)	Ursidae (Bears)
Genus	Chelonia (Green Sea Turtles)	Ursus (Bears)
Species	Chelonia mydas	Ursus maritimus

Evolutionary Relationship

Green Sea Turtle and Polar bear 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 ↓

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Green Sea Turtle	Polar bear
Diet	Herbivore	Carnivore
Average Lifespan	80 years	25 years
Average Length	1.2 m	2.4 m
Average Weight	200.0 kg	450.0 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.

Polar bear

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. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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。

Polar bear

地球上で最大の陸上肉食動物であるホッキョクグマは700kgを超えることがあり、カナダからロシアまでの北極海氷域全体に分布する。ワモンアザラシとヒゲアザラシを狩るために海氷に依存する高度に特化した海洋哺乳類である。広大な距離を泳ぐことができる優れた泳者でもある。脆弱種に指定されており、気候変動による急激な北極海氷の消失で個体群が深刻な圧力を受けている。