Koala vs

Phascolarctos cinereus compared with Ochrolechia subviridis

Taxonomic Classification

Rank	Koala
Kingdom	Animalia (Tier)	Fungi (Pilze)
Phylum	Chordata (Chordatiere)	Ascomycota (Schlauchpilze)
Class	Mammalia (Säugetiere)	Lecanoromycetes (Lecanoromycetes)
Order	Diprotodontia (Marsupials)	Pertusariales (Pertusariales)
Family	Phascolarctidae (Koalas)	Ochrolechiaceae
Genus	Phascolarctos (Koalas)	Ochrolechia
Species	Phascolarctos cinereus	Ochrolechia subviridis

Conservation Status

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

VU — Vulnerable

Physical Characteristics

Attribute	Koala
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Vulnerable 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.

Ochrolechia subviridis is a crustose lichen forming thick, greenish-grey to whitish patches on siliceous rocks and tree bark in oceanic and montane habitats. It produces disc-shaped apothecia with a pale, pruinose surface and contains usnic acid compounds. Its Vulnerable status reflects sensitivity to habitat changes and atmospheric pollution in its restricted range.