Alpine Bladder-fern vs Pygmy three-toed sloth

Cystopteris alpina compared with Bradypus pygmaeus

Key Differences

• Alpine Bladder-fern is Near Threatened while Pygmy three-toed sloth is Critically Endangered.

Taxonomic Classification

Rank	Alpine Bladder-fern	Pygmy three-toed sloth
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (Mammals)
Order	Polypodiales (Polypodiales)	Pilosa (Sloths & Anteaters)
Family	Cystopteridaceae	Bradypodidae (Three-toed Sloths)
Genus	Cystopteris	Bradypus (Three-toed Sloths)
Species	Cystopteris alpina	Bradypus pygmaeus

Conservation Status

Alpine Bladder-fern

NT — Near Threatened

Pygmy three-toed sloth

CR — Critically Endangered

Physical Characteristics

Attribute	Alpine Bladder-fern	Pygmy three-toed sloth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alpine Bladder-fern

Habitat

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

Range

Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Pygmy three-toed sloth

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Alpine Bladder-fern

The Alpine Bladder-fern (Cystopteris alpina) is a species in the genus Cystopteris. It is currently classified as Near Threatened on the IUCN Red List. Typically found in moist, shaded forest floors and tropical canopies. Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.