Atlantic Stream Crayfish vs koala

Austropotamobius pallipes compared with Phascolarctos cinereus

Key Differences

• Atlantic Stream Crayfish is Endangered while koala is Vulnerable.

Taxonomic Classification

Rank	Atlantic Stream Crayfish	koala
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Arthropoda (arthropodes)	Chordata (Chordates)
Class	Malacostraca (Crustaceans)	Mammalia (mammifères)
Order	Decapoda (Decapoda)	Diprotodontia (Marsupials)
Family	Astacidae	Phascolarctidae (Koalas)
Genus	Austropotamobius	Phascolarctos (Koalas)
Species	Austropotamobius pallipes	Phascolarctos cinereus

Evolutionary Relationship

Atlantic Stream Crayfish and koala share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

Atlantic Stream Crayfish

EN — Endangered

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Atlantic Stream Crayfish	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

Atlantic Stream Crayfish

Habitat

Inhabits temperate broadleaf and mixed forests and temperate coniferous forests within the Palearctic biogeographic realm.

Range

Distributed across Ireland and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

Atlantic Stream Crayfish

The Atlantic Stream Crayfish (Austropotamobius pallipes) is a species in the genus Austropotamobius. It is currently classified as Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests and temperate coniferous forests within the Palearctic biogeographic realm.

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.