Blue Dolphin vs limestone fern

Stenella coeruleoalba compared with Gymnocarpium robertianum

Key Differences

• Blue Dolphin is Least Concern while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	Blue Dolphin	limestone fern
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Tracheophyta
Class	Mammalia (Mammals)	Polypodiopsida (Polypodiopsida)
Order	Cetacea (Whales & Dolphins)	Polypodiales (Polypodiales)
Family	Delphinidae (Oceanic Dolphins)	Cystopteridaceae
Genus	Stenella	Gymnocarpium
Species	Stenella coeruleoalba	Gymnocarpium robertianum

Conservation Status

Blue Dolphin

LC — Least Concern

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	Blue Dolphin	limestone fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela).

limestone fern

Habitat

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

Range

Distributed across Belgium, Canada, Norway, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Blue Dolphin

Blue Dolphin (Stenella coeruleoalba) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden