koala vs Narrow-headed Slender Opossum

Phascolarctos cinereus compared with Marmosops cracens

Key Differences

• koala is Vulnerable while Narrow-headed Slender Opossum is Data Deficient.

Taxonomic Classification

Rank	koala	Narrow-headed Slender Opossum
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Diprotodontia (Marsupials)	Didelphimorphia (Didelphimorphia)
Family	Phascolarctidae (Koalas)	Didelphidae
Genus	Phascolarctos (Koalas)	Marmosops
Species	Phascolarctos cinereus	Marmosops cracens

Evolutionary Relationship

koala and Narrow-headed Slender Opossum share a common ancestor at the Class level: Mammalia. (สัตว์เลี้ยงลูกด้วยน้ำนม)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Narrow-headed Slender Opossum

DD — Data Deficient

Physical Characteristics

Attribute	koala	Narrow-headed Slender Opossum
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.

Narrow-headed Slender Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela.

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.