koala vs Slender-billed Curlew

Phascolarctos cinereus compared with Numenius tenuirostris

Key Differences

• koala is Vulnerable while Slender-billed Curlew is Critically Endangered.

Taxonomic Classification

Rank	koala	Slender-billed Curlew
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class	Mammalia (memeliler)	Aves (kuş)
Order	Diprotodontia (İki ön dişliler)	Charadriiformes (Yağmur kuşları)
Family	Phascolarctidae (Koalas)	Scolopacidae
Genus	Phascolarctos (Koalas)	Numenius
Species	Phascolarctos cinereus	Numenius tenuirostris

Evolutionary Relationship

koala and Slender-billed Curlew share a common ancestor at the Phylum level: Chordata. (Kordalılar)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Slender-billed Curlew

CR — Critically Endangered

Physical Characteristics

Attribute	koala	Slender-billed Curlew
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.

Slender-billed Curlew

Habitat

Inhabits temperate broadleaf and mixed forests and temperate coniferous forests within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Norway and Ukraine. Currently classified as Critically 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.