koala vs Stoat, Ermine

Phascolarctos cinereus compared with Mustela erminea

Taxonomic Classification

Rank	koala	Stoat, Ermine
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Diprotodontia (雙門齒目)	Carnivora (食肉目)
Family	Phascolarctidae (Koalas)	Mustelidae (Weasels & Otters)
Genus	Phascolarctos (Koalas)	Mustela
Species	Phascolarctos cinereus	Mustela erminea

Evolutionary Relationship

koala and Stoat, Ermine share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Stoat, Ermine

VU — Vulnerable

Physical Characteristics

Attribute	koala	Stoat, Ermine
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.

Stoat, Ermine

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and temperate broadleaf and mixed forests, among 6 distinct biome types spanning the Australasia and Indomalayan and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Indonesia), Europe (6 countries), North America (United States), and Oceania and the Pacific (New Zealand). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

koala

澳大利亚东部和东南部的标志性有袋类动物，体重最大可达15千克，为了节省低热量桉树叶食物所提供的能量，每天最多睡眠22小时。高度特化，能够处理会致大多数其他哺乳动物死亡的有毒桉树成分，拥有专门适应解毒功能的肠道微生物群。因衣原体病、栖息地开发和气候变化导致种群锐减，2022年被列为濒危物种。

Stoat, Ermine

白鼬（Mustela erminea）在IUCN红色名录中被列为易危（VU）。在野外面临较高的濒危风险，种群数量下降，栖息地压力增加。