koala vs petit collier argenté

Phascolarctos cinereus compared with Boloria selene

Key Differences

• koala is Vulnerable while petit collier argenté is Extinct.

Taxonomic Classification

Rank	koala	petit collier argenté
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Chordata (Chordates)	Arthropoda (arthropodes)
Class	Mammalia (mammifères)	Insecta (insecte)
Order	Diprotodontia (Marsupials)	Lepidoptera (Butterflies & Moths)
Family	Phascolarctidae (Koalas)	Nymphalidae (Brush-footed Butterflies)
Genus	Phascolarctos (Koalas)	Boloria
Species	Phascolarctos cinereus	Boloria selene

Evolutionary Relationship

koala and petit collier argenté share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

petit collier argenté

EX — Extinct

Physical Characteristics

Attribute	koala	petit collier argenté
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.

petit collier argenté

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (34 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.

petit collier argenté

Silver Meadow (Boloria selene) is classified as Extinct (EX) on the IUCN Red List. This species has been declared extinct, with no known living individuals remaining in the wild or in captivity.