koala vs Orange-headed Thrush

Phascolarctos cinereus compared with Geokichla citrina

Key Differences

• koala is Vulnerable while Orange-headed Thrush is Least Concern.

Taxonomic Classification

Rank	koala	Orange-headed Thrush
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class	Mammalia (memeliler)	Aves (kuş)
Order	Diprotodontia (İki ön dişliler)	Passeriformes (Ötücü kuşlar)
Family	Phascolarctidae (Koalas)	Turdidae
Genus	Phascolarctos (Koalas)	Geokichla
Species	Phascolarctos cinereus	Geokichla citrina

Evolutionary Relationship

koala and Orange-headed Thrush share a common ancestor at the Phylum level: Chordata. (Kordalılar)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Orange-headed Thrush

LC — Least Concern

Physical Characteristics

Attribute	koala	Orange-headed Thrush
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.

Orange-headed Thrush

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Norway and Taiwan.

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.