Bladder Fern vs Komodo Dragon

Cystopteris fragilis compared with Varanus komodoensis

Key Differences

Bladder Fern is Not Evaluated while Komodo Dragon is Endangered.

Taxonomic Classification

Rank	Bladder Fern	Komodo Dragon
Kingdom	Plantae (植物)	Animalia (动物界)
Phylum	Tracheophyta	Chordata (脊索动物门)
Class	Polypodiopsida (水龍骨綱)	Reptilia (爬行纲)
Order	Polypodiales (水龙骨目)	Squamata (有鱗目)
Family	Cystopteridaceae	Varanidae (Monitor Lizards)
Genus	Cystopteris	Varanus (Monitor Lizards)
Species	Cystopteris fragilis	Varanus komodoensis

Conservation Status

Bladder Fern

NE — Not Evaluated

Komodo Dragon

EN — Endangered

Population: ~3.5K

Trend: Stable →

Physical Characteristics

Attribute	Bladder Fern	Komodo Dragon
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	2.6 m
Average Weight	—	70.0 kg

Habitat & Geographic Range

Bladder Fern

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (Canada, United States), and South America (Colombia).

Komodo Dragon

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Indonesia. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.