American Cupped Oyster vs koala

Crassostrea virginica compared with Phascolarctos cinereus

Key Differences

• American Cupped Oyster is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank	American Cupped Oyster	koala
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum	Mollusca (Moluska)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Mammalia (mamalia)
Order	Ostreida (Ostreida)	Diprotodontia (Marsupials)
Family	Ostreidae	Phascolarctidae (Koalas)
Genus	Crassostrea	Phascolarctos (Koalas)
Species	Crassostrea virginica	Phascolarctos cinereus

Evolutionary Relationship

American Cupped Oyster and koala share a common ancestor at the Kingdom level: Animalia. (hewan)

Conservation Status

American Cupped Oyster

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	American Cupped Oyster	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

American Cupped Oyster

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (China, Turkey), Europe (11 countries), North America (Bahamas, Canada, United States), and South America (Brazil).

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.

American Cupped Oyster

The American Cupped Oyster (Crassostrea virginica) is a species in the genus Crassostrea. Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

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.