limestone fern vs Oriental House Rat

Gymnocarpium robertianum compared with Rattus tanezumi

Key Differences

• limestone fern is Critically Endangered while Oriental House Rat is Least Concern.

Taxonomic Classification

Rank	limestone fern	Oriental House Rat
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (Mammals)
Order	Polypodiales (Polypodiales)	Rodentia (Rodents)
Family	Cystopteridaceae	Muridae (Mice & Rats)
Genus	Gymnocarpium	Rattus
Species	Gymnocarpium robertianum	Rattus tanezumi

Conservation Status

limestone fern

CR — Critically Endangered

Oriental House Rat

LC — Least Concern

Physical Characteristics

Attribute	limestone fern	Oriental House Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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.

Oriental House Rat

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Oceanian biogeographic realm.

Range

Widely distributed across Africa (Eswatini, Lesotho, South Africa), Asia (Philippines, Taiwan), and Oceania and the Pacific (Kiribati).