koala vs rhesus monkey

Phascolarctos cinereus compared with Macaca mulatta

Key Differences

• koala is Vulnerable while rhesus monkey is Least Concern.

Taxonomic Classification

Rank	koala	rhesus monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Diprotodontia (Marsupials)	Primates (Primates)
Family	Phascolarctidae (Koalas)	Cercopithecidae (Old World Monkeys)
Genus	Phascolarctos (Koalas)	Macaca
Species	Phascolarctos cinereus	Macaca mulatta

Evolutionary Relationship

koala and rhesus monkey share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

rhesus monkey

LC — Least Concern

Physical Characteristics

Attribute	koala	rhesus monkey
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.

rhesus monkey

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Range

Widely distributed across Asia (Bhutan, Iran, Japan), Europe (Germany), North America (United States), and South America (Colombia).

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.