Irrawaddy dolphin vs limestone fern

Orcaella brevirostris compared with Gymnocarpium robertianum

Key Differences

• Irrawaddy dolphin is Endangered while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	Irrawaddy 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	Orcaella	Gymnocarpium
Species	Orcaella brevirostris	Gymnocarpium robertianum

Conservation Status

Irrawaddy dolphin

EN — Endangered

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	Irrawaddy dolphin	limestone fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.