koala vs Perija Thistletail

Phascolarctos cinereus compared with Asthenes perijana

Key Differences

• koala is Vulnerable while Perija Thistletail is Endangered.

Taxonomic Classification

Rank	koala	Perija Thistletail
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (mamalia)	Aves (burung)
Order	Diprotodontia (Marsupials)	Passeriformes (burung pengicau)
Family	Phascolarctidae (Koalas)	Furnariidae
Genus	Phascolarctos (Koalas)	Asthenes
Species	Phascolarctos cinereus	Asthenes perijana

Evolutionary Relationship

koala and Perija Thistletail share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Perija Thistletail

EN — Endangered

Physical Characteristics

Attribute	koala	Perija Thistletail
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.

Perija Thistletail

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Norway, and Venezuela. Currently classified as Endangered 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.