Brittle Bladderfern vs Eurasian red squirrel

Cystopteris tenuis compared with Sciurus vulgaris

Key Differences

• Brittle Bladderfern is Not Evaluated while Eurasian red squirrel is Least Concern.

Taxonomic Classification

Rank	Brittle Bladderfern	Eurasian red squirrel
Kingdom	Plantae (растения)	Animalia (животные)
Phylum	Tracheophyta	Chordata (хордовые)
Class	Polypodiopsida (папоротниковые)	Mammalia (млекопитающие)
Order	Polypodiales (многоножковые)	Rodentia (грызуны)
Family	Cystopteridaceae	Sciuridae (Squirrels)
Genus	Cystopteris	Sciurus (Tree Squirrels)
Species	Cystopteris tenuis	Sciurus vulgaris

Conservation Status

Brittle Bladderfern

NE — Not Evaluated

Eurasian red squirrel

LC — Least Concern

Physical Characteristics

Attribute	Brittle Bladderfern	Eurasian red squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brittle Bladderfern

Habitat

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

Range

Distributed across Canada and United States.

Eurasian red squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Asia (Georgia) and Europe (5 countries).

Brittle Bladderfern

The Brittle Bladderfern (Cystopteris tenuis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.

Eurasian red squirrel

Eurasian red squirrel (Sciurus vulgaris) 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.