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 (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Reptilia (สัตว์เลื้อยคลาน)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Testudines (เต่า)	Carnivora (สัตว์กินเนื้อ)
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. (สัตว์มีแกนสันหลัง)

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

The green sea turtle is one of the largest sea turtles. They are named for the green color of their cartilage and fat, not their shells.

Polar bear

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.