Great Hammerhead vs Green Sea Turtle

Sphyrna mokarran compared with Chelonia mydas

Key Differences

Great Hammerhead is Critically Endangered while Green Sea Turtle is Endangered.
Great Hammerhead is carnivore while Green Sea Turtle is herbivore.
Great Hammerhead is 2.2x heavier than Green Sea Turtle.
Green Sea Turtle lives longer (80 years vs 40 years).

Taxonomic Classification

Rank	Great Hammerhead	Green Sea Turtle
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Chondrichthyes (연골어류)	Reptilia (파충류)
Order	Carcharhiniformes (흉상어목)	Testudines (거북)
Family	Sphyrnidae (Hammerhead Sharks)	Cheloniidae (Sea Turtles)
Genus	Sphyrna (Hammerhead Sharks)	Chelonia (Green Sea Turtles)
Species	Sphyrna mokarran	Chelonia mydas

Evolutionary Relationship

Great Hammerhead and Green Sea Turtle share a common ancestor at the Phylum level: Chordata. (척삭동물)

보기 Phylum: Chordata

Conservation Status

Great Hammerhead

CR — Critically Endangered

Trend: Decreasing ↓

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Great Hammerhead	Green Sea Turtle
Diet	Carnivore	Herbivore
Average Lifespan	40 years	80 years
Average Length	5.0 m	1.2 m
Average Weight	450.0 kg	200.0 kg

Habitat & Geographic Range

Great Hammerhead

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 5 distinct biome types spanning the Indomalayan and Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia, Taiwan, and Venezuela. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

Great Hammerhead

가장 큰 귀상어 종으로, 큰귀상어는 최대 6미터에 달하며 전 세계 열대 및 아열대 연안 해역에 서식합니다. T자 형태의 독특한 머리(세팔로포일)는 전기 감지를 위한 감각 표면적을 크게 늘려, 모래 속에 숨어 있는 노랑가오리를 탁월한 정확도로 탐지할 수 있게 해줍니다—노랑가오리는 주요 먹이입니다. 높은 가치의 지느러미와 혼획 사망으로 인해 개체군이 급격히 감소하여 심각한위기종으로 분류되어 있습니다.