koala vs limestone fern

Phascolarctos cinereus compared with Gymnocarpium robertianum

Key Differences

• koala is Vulnerable while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	koala	limestone fern
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Tracheophyta
Class	Mammalia (哺乳類)	Polypodiopsida (ウラボシ綱)
Order	Diprotodontia (カンガルー目)	Polypodiales (ウラボシ目)
Family	Phascolarctidae (Koalas)	Cystopteridaceae
Genus	Phascolarctos (Koalas)	Gymnocarpium
Species	Phascolarctos cinereus	Gymnocarpium robertianum

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	koala	limestone fern
Diet	Herbivore	—
Average Lifespan	15 years	—
Average Length	75 cm	—
Average Weight	10.0 kg	—

Habitat & Geographic Range

koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

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

koala

オーストラリア東部・南東部を代表する有袋類で、体重は最大15kgに達し、低カロリーのユーカリの葉食から得るエネルギーを節約するために1日最大22時間を睡眠に費やす。他の哺乳類の多くを死に至らしめる有毒なユーカリ成分を処理するために高度に特化しており、解毒に特別に適応した腸内微生物叢を持つ。クラミジア感染症、生息地の伐採、気候変動により個体数が激減し、2022年に絶滅危惧種に指定された。