Green Sea Turtle vs Laysan Duck

Chelonia mydas compared with Anas laysanensis

Key Differences

• Green Sea Turtle is Endangered while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Green Sea Turtle	Laysan Duck
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class	Reptilia (Sürüngenler)	Aves (kuş)
Order	Testudines (Kaplumbağa)	Anseriformes (Kazsılar)
Family	Cheloniidae (Sea Turtles)	Anatidae
Genus	Chelonia (Green Sea Turtles)	Anas
Species	Chelonia mydas	Anas laysanensis

Evolutionary Relationship

Green Sea Turtle and Laysan Duck share a common ancestor at the Phylum level: Chordata. (Kordalılar)

Conservation Status

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Green Sea Turtle	Laysan Duck
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.

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered 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.

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.