koala vs Yellow Barklouse

Phascolarctos cinereus compared with Valenzuela flavidus

Key Differences

• koala is Vulnerable while Yellow Barklouse is Not Evaluated.

Taxonomic Classification

Rank	koala	Yellow Barklouse
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum	Chordata (حبليات)	Arthropoda (مفصليات الأرجل)
Class	Mammalia (ثدييات)	Insecta (حشرات)
Order	Diprotodontia (ثنائيات الأسنان الأمامية)	Psocodea (قاضمات)
Family	Phascolarctidae (Koalas)	Caeciliusidae
Genus	Phascolarctos (Koalas)	Valenzuela
Species	Phascolarctos cinereus	Valenzuela flavidus

Evolutionary Relationship

koala and Yellow Barklouse share a common ancestor at the Kingdom level: Animalia. (حيوانات)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Yellow Barklouse

NE — Not Evaluated

Physical Characteristics

Attribute	koala	Yellow Barklouse
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.

Yellow Barklouse

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (5 countries) and North America (United States).

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.