Green Sea Turtle vs hydroid

Chelonia mydas compared with Obelia longissima

Key Differences

• Green Sea Turtle is Endangered while hydroid is Not Evaluated.

Taxonomic Classification

Rank	Green Sea Turtle	hydroid
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Cnidaria (刺胞動物門)
Class	Reptilia (爬行纲)	Hydrozoa (水螅纲)
Order	Testudines (龟鳖目)	Leptothecata (软水母目)
Family	Cheloniidae (Sea Turtles)	Campanulariidae
Genus	Chelonia (Green Sea Turtles)	Obelia
Species	Chelonia mydas	Obelia longissima

Evolutionary Relationship

Green Sea Turtle and hydroid share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	Green Sea Turtle	hydroid
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.

hydroid

Habitat

Native to Europe and North America and Oceania, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina).

Green Sea Turtle

绿海龟是最大的海龟之一。其名称源于软骨和脂肪的绿色，而非龟壳的颜色。

Shared Countries

Both species can be found in 1 countries:

🇦🇺 Australia