Bigeye sand shark vs Green Sea Turtle

Odontaspis noronhai compared with Chelonia mydas

Key Differences

• Bigeye sand shark is Least Concern while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Bigeye sand shark	Green Sea Turtle
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Reptilia (Reptil)
Order	Lamniformes (Mackerel Sharks)	Testudines (Kura-kura)
Family	Odontaspididae	Cheloniidae (Sea Turtles)
Genus	Odontaspis	Chelonia (Green Sea Turtles)
Species	Odontaspis noronhai	Chelonia mydas

Evolutionary Relationship

Bigeye sand shark and Green Sea Turtle share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigeye sand shark

LC — Least Concern

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bigeye sand shark	Green Sea Turtle
Diet	—	Herbivore
Average Lifespan	—	80 years
Average Length	—	1.2 m
Average Weight	—	200.0 kg

Habitat & Geographic Range

Bigeye sand shark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Found in Norway.

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.

Bigeye sand shark

The Bigeye sand shark (Odontaspis noronhai) is a species in the genus Odontaspis. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.