Crested Oysterling vs Koala

Crepidotus cristatus compared with Phascolarctos cinereus

Key Differences

Crested Oysterling is Data Deficient while Koala is Vulnerable.

Taxonomic Classification

Rank	Crested Oysterling	Koala
Kingdom	Fungi (Pilze)	Animalia (Tier)
Phylum	Basidiomycota (Ständerpilze)	Chordata (Chordatiere)
Class	Agaricomycetes (Mushrooms)	Mammalia (Säugetiere)
Order	Agaricales (Champignonartige)	Diprotodontia (Marsupials)
Family	Crepidotaceae	Phascolarctidae (Koalas)
Genus	Crepidotus	Phascolarctos (Koalas)
Species	Crepidotus cristatus	Phascolarctos cinereus

Conservation Status

Crested Oysterling

DD — Data Deficient

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Crested Oysterling	Koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Crested Oysterling

Habitat

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

Range

Distributed across Denmark and Norway.

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.

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.