Koala vs

Phascolarctos cinereus compared with Nitrosotalea

Key Differences

• Koala is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Koala
Kingdom	Animalia (Tier)	Archaea (Archaea)
Phylum	Chordata (Chordatiere)	Thermoproteota (Thermoproteota)
Class	Mammalia (Säugetiere)	Nitrososphaeria (Nitrososphaeria)
Order	Diprotodontia (Marsupials)	Nitrososphaerales (Nitrososphaerales)
Family	Phascolarctidae (Koalas)	Nitrosopumilaceae
Genus	Phascolarctos (Koalas)	Nitrosotalea
Species	Phascolarctos cinereus	Nitrosotalea

Conservation Status

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

NE — Not Evaluated

Physical Characteristics

Attribute	Koala
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.

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.

Nitrosotalea is a genus of ammonia-oxidizing archaea in the phylum Thaumarchaeota, distinguished by their ability to perform nitrification under acidic conditions where most other nitrifying microorganisms cannot survive. Species within this genus have been detected in acidic soils worldwide, suggesting a significant but underappreciated role in nitrogen cycling in low-pH habitats. The genus was established following the cultivation of the type species from agricultural soil.