koala vs Kwakiutl's holly fern

Phascolarctos cinereus compared with Polystichum kwakiutlii

Key Differences

• koala is Vulnerable while Kwakiutl's holly fern is Extinct.

Taxonomic Classification

Rank	koala	Kwakiutl's holly fern
Kingdom	Animalia (động vật)	Plantae (thực vật)
Phylum	Chordata (động vật có dây sống)	Tracheophyta
Class	Mammalia (lớp Thú)	Polypodiopsida (Lớp Dương xỉ)
Order	Diprotodontia (Thú hai răng trước)	Polypodiales (Bộ Dương xỉ)
Family	Phascolarctidae (Koalas)	Dryopteridaceae
Genus	Phascolarctos (Koalas)	Polystichum
Species	Phascolarctos cinereus	Polystichum kwakiutlii

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Kwakiutl's holly fern

EX — Extinct

Physical Characteristics

Attribute	koala	Kwakiutl's holly 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.

Kwakiutl's holly fern

Habitat

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

Range

Found in Canada.

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.