Green Sea Turtle vs Grey Knot-horn

Chelonia mydas compared with Acrobasis advenella

Key Differences

• Green Sea Turtle is Endangered while Grey Knot-horn is Least Concern.

Taxonomic Classification

Rank	Green Sea Turtle	Grey Knot-horn
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Reptilia (Reptiles)	Insecta (Insects)
Order	Testudines (Turtles & Tortoises)	Lepidoptera (Butterflies & Moths)
Family	Cheloniidae (Sea Turtles)	Pyralidae
Genus	Chelonia (Green Sea Turtles)	Acrobasis
Species	Chelonia mydas	Acrobasis advenella

Evolutionary Relationship

Green Sea Turtle and Grey Knot-horn share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Grey Knot-horn

LC — Least Concern

Physical Characteristics

Attribute	Green Sea Turtle	Grey Knot-horn
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.

Grey Knot-horn

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.