Green Sea Turtle vs Seiche de Ken

Chelonia mydas compared with Sepia grahami

Key Differences

• Green Sea Turtle is Endangered while Seiche de Ken is Least Concern.

Taxonomic Classification

Rank	Green Sea Turtle	Seiche de Ken
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Chordata (Chordates)	Mollusca (mollusques)
Class	Reptilia (Reptiles)	Cephalopoda (Cephalopods)
Order	Testudines (tortue)	Sepiida (seiche)
Family	Cheloniidae (Sea Turtles)	Sepiidae
Genus	Chelonia (Green Sea Turtles)	Sepia
Species	Chelonia mydas	Sepia grahami

Evolutionary Relationship

Green Sea Turtle and Seiche de Ken share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Seiche de Ken

LC — Least Concern

Physical Characteristics

Attribute	Green Sea Turtle	Seiche de Ken
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.

Seiche de Ken

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.