koala vs Large-Neck Clam

Phascolarctos cinereus compared with Mya arenaria

Taxonomic Classification

Rank	koala	Large-Neck Clam
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum	Chordata (động vật có dây sống)	Mollusca (động vật thân mềm)
Class	Mammalia (lớp Thú)	Bivalvia (Thân mềm hai mảnh vỏ)
Order	Diprotodontia (Thú hai răng trước)	Myida (Myida)
Family	Phascolarctidae (Koalas)	Myidae
Genus	Phascolarctos (Koalas)	Mya
Species	Phascolarctos cinereus	Mya arenaria

Evolutionary Relationship

koala and Large-Neck Clam share a common ancestor at the Kingdom level: Animalia. (động vật)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Large-Neck Clam

VU — Vulnerable

Physical Characteristics

Attribute	koala	Large-Neck Clam
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.

Large-Neck Clam

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes, among 5 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Georgia, Turkey), Europe (22 countries), and North America (Canada, United States). 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.

Large-Neck Clam

Large-Neck Clam (Mya arenaria) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.