Brittle Bladderfern vs Comoro Flying Fox

Cystopteris tenuis compared with Pteropus livingstonii

Key Differences

Brittle Bladderfern is Not Evaluated while Comoro Flying Fox is Critically Endangered.

Taxonomic Classification

Rank	Brittle Bladderfern	Comoro Flying Fox
Kingdom	Plantae (식물)	Animalia (동물)
Phylum	Tracheophyta	Chordata (척삭동물)
Class	Polypodiopsida (고사리강)	Mammalia (포유류)
Order	Polypodiales (고사리목)	Chiroptera (박쥐)
Family	Cystopteridaceae	Pteropodidae (Fruit Bats)
Genus	Cystopteris	Pteropus (Flying Foxes)
Species	Cystopteris tenuis	Pteropus livingstonii

Conservation Status

Brittle Bladderfern

NE — Not Evaluated

Comoro Flying Fox

CR — Critically Endangered

Physical Characteristics

Attribute	Brittle Bladderfern	Comoro Flying Fox
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.

Comoro Flying Fox

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Brittle Bladderfern

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

<em>Pteropus livingstonii</em>, the Comoro flying fox or Livingstone's fruit bat, is a large fruit bat in the family Pteropodidae, endemic to the Comoro Islands in the western Indian Ocean, where it is restricted to Anjouan and Mohéli. It is one of the largest bats in the world, with a wingspan that can exceed one meter and a body weight reportedly ranging between 400–700 g. The species roosts colonially in tall native forest trees, particularly in humid upland forest fragments, and feeds on a variety of native fruits, nectar, and pollen, playing a critical role as a seed disperser and pollinator in Comoran forest ecosystems. Precise average lifespan data in the wild remain poorly documented, though captive individuals have lived over 20 years. <em>Pteropus livingstonii</em> is assessed as Critically Endangered by the IUCN, making it one of the most threatened bat species in the world. Primary threats include extensive deforestation driven by agricultural expansion and charcoal production, which has severely reduced suitable roosting and foraging habitat, along with historic hunting. Conservation efforts include habitat protection, community education programs, and captive breeding initiatives at several European zoos coordinated through an international species survival program.