koala vs Lusitanian slug

Phascolarctos cinereus compared with Arion lusitanicus

Key Differences

• koala is Vulnerable while Lusitanian slug is Least Concern.

Taxonomic Classification

Rank	koala	Lusitanian slug
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum	Chordata (Kordalılar)	Mollusca (Yumuşakçalar)
Class	Mammalia (memeliler)	Gastropoda (Karından bacaklılar)
Order	Diprotodontia (İki ön dişliler)	Stylommatophora (Stylommatophora)
Family	Phascolarctidae (Koalas)	Arionidae
Genus	Phascolarctos (Koalas)	Arion
Species	Phascolarctos cinereus	Arion lusitanicus

Evolutionary Relationship

koala and Lusitanian slug share a common ancestor at the Kingdom level: Animalia. (hayvan)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Lusitanian slug

LC — Least Concern

Physical Characteristics

Attribute	koala	Lusitanian slug
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.

Lusitanian slug

Habitat

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

Range

Found across Europe (17 countries).

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.