Blue-back Locust Lobster vs Koala

Petrarctus brevicornis compared with Phascolarctos cinereus

Key Differences

Blue-back Locust Lobster is Least Concern while Koala is Vulnerable.

Taxonomic Classification

Rank	Blue-back Locust 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	Petrarctus	Phascolarctos (Koalas)
Species	Petrarctus brevicornis	Phascolarctos cinereus

Evolutionary Relationship

Blue-back Locust Lobster and Koala share a common ancestor at the Kingdom level: Animalia. (Tier)

Ansehen Kingdom: Animalia

Conservation Status

Blue-back Locust Lobster

LC — Least Concern

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Blue-back Locust Lobster	Koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Blue-back Locust 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.

Blue-back Locust Lobster

The Blue-back Locust Lobster (Petrarctus brevicornis) is a species in the genus Petrarctus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine, freshwater, and terrestrial environments.

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.