koala vs Red Abalone

Phascolarctos cinereus compared with Haliotis rufescens

Key Differences

• koala is Vulnerable while Red Abalone is Critically Endangered.

Taxonomic Classification

Rank	koala	Red Abalone
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Diprotodontia (Marsupials)	Lepetellida (Lepetellida)
Family	Phascolarctidae (Koalas)	Haliotidae
Genus	Phascolarctos (Koalas)	Haliotis
Species	Phascolarctos cinereus	Haliotis rufescens

Evolutionary Relationship

koala and Red Abalone share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Red Abalone

CR — Critically Endangered

Physical Characteristics

Attribute	koala	Red Abalone
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.

Red Abalone

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate coniferous forests, and tropical and subtropical dry broadleaf forests, among 9 distinct biome types spanning the Indomalayan and Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Chile, China, Norway, Peru, and Taiwan. 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.