Big eye thresher shark vs Bladder Fern

Alopias superciliosus compared with Cystopteris fragilis

Key Differences

• Big eye thresher shark is Vulnerable while Bladder Fern is Not Evaluated.

Taxonomic Classification

Rank	Big eye thresher shark	Bladder Fern
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Tracheophyta
Class	Chondrichthyes (Cartilaginous Fish)	Polypodiopsida (Polypodiopsida)
Order	Lamniformes (Mackerel Sharks)	Polypodiales (Polypodiales)
Family	Alopiidae	Cystopteridaceae
Genus	Alopias	Cystopteris
Species	Alopias superciliosus	Cystopteris fragilis

Conservation Status

Big eye thresher shark

VU — Vulnerable

Bladder Fern

NE — Not Evaluated

Physical Characteristics

Attribute	Big eye thresher shark	Bladder Fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big eye thresher shark

Habitat

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

Range

Distributed across Chile, Colombia, Portugal, Taiwan, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its 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).

Big eye thresher shark

The Big eye thresher shark (Alopias superciliosus) is a species in the genus Alopias. It is currently classified as Vulnerable on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Bladder Fern

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

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇹🇼 Taiwan