brush-tailed bettong vs koala

Bettongia penicillata compared with Phascolarctos cinereus

Key Differences

brush-tailed bettong is Critically Endangered while koala is Vulnerable.

Taxonomic Classification

Rank	brush-tailed bettong	koala
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Diprotodontia (Marsupials)	Diprotodontia (Marsupials)
Family	Potoroidae	Phascolarctidae (Koalas)
Genus	Bettongia	Phascolarctos (Koalas)
Species	Bettongia penicillata	Phascolarctos cinereus

Evolutionary Relationship

brush-tailed bettong and koala share a common ancestor at the Order level: Diprotodontia. (Marsupials)

View Order: Diprotodontia

Conservation Status

brush-tailed bettong

CR — Critically Endangered

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	brush-tailed bettong	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

brush-tailed bettong

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

brush-tailed bettong

The Brush-tailed Bettong (Bettongia penicillata) is a species in the genus Bettongia. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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.