koala vs Scaly-sided Merganser

Phascolarctos cinereus compared with Mergus squamatus

Key Differences

• koala is Vulnerable while Scaly-sided Merganser is Endangered.

Taxonomic Classification

Rank	koala	Scaly-sided Merganser
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)	Mergus
Species	Phascolarctos cinereus	Mergus squamatus

Evolutionary Relationship

koala and Scaly-sided Merganser share a common ancestor at the Phylum level: Chordata. (Kordalılar)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Scaly-sided Merganser

EN — Endangered

Physical Characteristics

Attribute	koala	Scaly-sided Merganser
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.

Scaly-sided Merganser

Habitat

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

Range

Distributed across Norway and Taiwan. Currently classified as 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.