Alpine Cliff Fern vs koala

Woodsia alpina compared with Phascolarctos cinereus

Key Differences

Alpine Cliff Fern is Least Concern while koala is Vulnerable.

Taxonomic Classification

Rank	Alpine Cliff Fern	koala
Kingdom	Plantae (พืช)	Animalia (สัตว์)
Phylum	Tracheophyta	Chordata (สัตว์มีแกนสันหลัง)
Class	Polypodiopsida (Polypodiopsida)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Polypodiales (Polypodiales)	Diprotodontia (Marsupials)
Family	Woodsiaceae	Phascolarctidae (Koalas)
Genus	Woodsia	Phascolarctos (Koalas)
Species	Woodsia alpina	Phascolarctos cinereus

Conservation Status

Alpine Cliff Fern

LC — Least Concern

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Alpine Cliff Fern	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Alpine Cliff Fern

Habitat

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

Range

Distributed across Canada, Iceland, Norway, Sweden, and United States.

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.

Alpine Cliff Fern

The Alpine Cliff Fern (Woodsia alpina) is a species in the genus Woodsia. It is currently classified as Least Concern on the IUCN Red List. Typically found in moist, shaded forest floors and tropical canopies. Distributed across Canada, Iceland, Norway, Sweden, and United States.

koala

Iconic marsupial of eastern and southeastern Australia, koalas weigh up to 15 kg and spend up to 22 hours daily sleeping to conserve energy from their low-calorie eucalyptus leaf diet. Highly specialized to process toxic eucalyptus compounds that would kill most other mammals, they have gut microbiomes uniquely adapted for detoxification. Listed as Endangered in 2022, with populations decimated by chlamydia disease, habitat clearing, and climate change.