Dusky arion vs koala

Arion subfuscus compared with Phascolarctos cinereus

Key Differences

• Dusky arion is Data Deficient while koala is Vulnerable.

Taxonomic Classification

Rank	Dusky arion	koala
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum	Mollusca (رخويات)	Chordata (حبليات)
Class	Gastropoda (بطنيات القدم)	Mammalia (ثدييات)
Order	Stylommatophora (عاموديات العيون)	Diprotodontia (ثنائيات الأسنان الأمامية)
Family	Arionidae	Phascolarctidae (Koalas)
Genus	Arion	Phascolarctos (Koalas)
Species	Arion subfuscus	Phascolarctos cinereus

Evolutionary Relationship

Dusky arion and koala share a common ancestor at the Kingdom level: Animalia. (حيوانات)

Conservation Status

Dusky arion

DD — Data Deficient

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Dusky arion	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Dusky arion

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found across Europe (5 countries) and North America (United States).

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.

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.