Giant Otter vs limestone fern

Pteronura brasiliensis compared with Gymnocarpium robertianum

Key Differences

• Giant Otter is Endangered while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	Giant Otter	limestone fern
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Tracheophyta
Class	Mammalia (Mammals)	Polypodiopsida (Polypodiopsida)
Order	Carnivora (Carnivorans)	Polypodiales (Polypodiales)
Family	Mustelidae (Weasels & Otters)	Cystopteridaceae
Genus	Pteronura	Gymnocarpium
Species	Pteronura brasiliensis	Gymnocarpium robertianum

Conservation Status

Giant Otter

EN — Endangered

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	Giant Otter	limestone fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Giant Otter

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.