Japanese Fan Lobster vs Koala

Ibacus ciliatus compared with Phascolarctos cinereus

Key Differences

• Japanese Fan Lobster is Data Deficient while Koala is Vulnerable.

Taxonomic Classification

Rank	Japanese Fan Lobster	Koala
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Arthropoda (Gliederfüßer)	Chordata (Chordatiere)
Class	Malacostraca (Höhere Krebse)	Mammalia (Säugetiere)
Order	Decapoda (Zehnfußkrebse)	Diprotodontia (Marsupials)
Family	Scyllaridae	Phascolarctidae (Koalas)
Genus	Ibacus	Phascolarctos (Koalas)
Species	Ibacus ciliatus	Phascolarctos cinereus

Evolutionary Relationship

Japanese Fan Lobster and Koala share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Japanese Fan Lobster

DD — Data Deficient

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Japanese Fan Lobster	Koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Japanese Fan Lobster

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Taiwan.

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.