koala vs Medusa Brittlestem

Phascolarctos cinereus compared with Psathyrella caput-medusae

Key Differences

• koala is Vulnerable while Medusa Brittlestem is Endangered.

Taxonomic Classification

Rank	koala	Medusa Brittlestem
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Mammalia (Mammals)	Agaricomycetes (Mushrooms)
Order	Diprotodontia (Marsupials)	Agaricales (Gilled Mushrooms)
Family	Phascolarctidae (Koalas)	Psathyrellaceae
Genus	Phascolarctos (Koalas)	Psathyrella
Species	Phascolarctos cinereus	Psathyrella caput-medusae

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Medusa Brittlestem

EN — Endangered

Physical Characteristics

Attribute	koala	Medusa Brittlestem
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.

Medusa Brittlestem

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.