Common Seahorse vs Green Sea Turtle

Hippocampus kuda compared with Chelonia mydas

Key Differences

• Common Seahorse is Vulnerable while Green Sea Turtle is Endangered.
• Common Seahorse is carnivore while Green Sea Turtle is herbivore.
• Green Sea Turtle is 20000.0x heavier than Common Seahorse.
• Green Sea Turtle lives longer (80 years vs 5 years).

Taxonomic Classification

Rank	Common Seahorse	Green Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Actinopterygii (Ray-finned Fish)	Reptilia (Reptiles)
Order	Perciformes (Perch-like Fish)	Testudines (Turtles & Tortoises)
Family	Pomacentridae (Clownfish & Damselfish)	Cheloniidae (Sea Turtles)
Genus	Amphiprion (Clownfish)	Chelonia (Green Sea Turtles)
Species	Hippocampus kuda	Chelonia mydas

Evolutionary Relationship

Common Seahorse and Green Sea Turtle share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Seahorse	Green Sea Turtle
Diet	Carnivore	Herbivore
Average Lifespan	5 years	80 years
Average Length	17 cm	1.2 m
Average Weight	10 g	200.0 kg

Habitat & Geographic Range

Common Seahorse

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 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Australia, India, Indonesia, Japan, and Philippines. Currently classified as Vulnerable 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.

Common Seahorse

The common seahorse is found in tropical and temperate waters. Males carry and deliver the babies.

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.

Shared Countries

Both species can be found in 2 countries:

🇦🇺 Australia 🇮🇩 Indonesia