koala vs Redhead

Phascolarctos cinereus compared with Aythya americana

Key Differences

• koala is Vulnerable while Redhead is Not Evaluated.

Taxonomic Classification

Rank	koala	Redhead
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class	Mammalia (memeliler)	Aves (kuş)
Order	Diprotodontia (İki ön dişliler)	Anseriformes (Kazsılar)
Family	Phascolarctidae (Koalas)	Anatidae
Genus	Phascolarctos (Koalas)	Aythya
Species	Phascolarctos cinereus	Aythya americana

Evolutionary Relationship

koala and Redhead share a common ancestor at the Phylum level: Chordata. (Kordalılar)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Redhead

NE — Not Evaluated

Physical Characteristics

Attribute	koala	Redhead
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.

Redhead

Habitat

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

Range

Found across Europe (7 countries) and North America (United States).

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.

Redhead

Redhead (Aythya americana) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.