Bladder Fern vs Green Sea Turtle

Cystopteris fragilis compared with Chelonia mydas

Key Differences

• Bladder Fern is Not Evaluated while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Bladder Fern	Green Sea Turtle
Kingdom	Plantae (نباتات)	Animalia (حيوانات)
Phylum	Tracheophyta	Chordata (حبليات)
Class	Polypodiopsida (سراخس رقيقة المباغ)	Reptilia (زواحف)
Order	Polypodiales (سرخسيات)	Testudines (سلحفاة)
Family	Cystopteridaceae	Cheloniidae (Sea Turtles)
Genus	Cystopteris	Chelonia (Green Sea Turtles)
Species	Cystopteris fragilis	Chelonia mydas

Conservation Status

Bladder Fern

NE — Not Evaluated

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bladder Fern	Green Sea Turtle
Diet	—	Herbivore
Average Lifespan	—	80 years
Average Length	—	1.2 m
Average Weight	—	200.0 kg

Habitat & Geographic Range

Bladder Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (Canada, United States), and South America (Colombia).

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.

Bladder Fern

The Bladder Fern (Cystopteris fragilis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.

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.