koala vs White-tailed Tree Rat

Phascolarctos cinereus compared with Brachytarsomys albicauda

Key Differences

• koala is Vulnerable while White-tailed Tree Rat is Least Concern.

Taxonomic Classification

Rank	koala	White-tailed Tree Rat
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)	Rodentia (啮齿目)
Family	Phascolarctidae (Koalas)	Nesomyidae
Genus	Phascolarctos (Koalas)	Brachytarsomys
Species	Phascolarctos cinereus	Brachytarsomys albicauda

Evolutionary Relationship

koala and White-tailed Tree Rat share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

White-tailed Tree Rat

LC — Least Concern

Physical Characteristics

Attribute	koala	White-tailed Tree Rat
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.

White-tailed Tree Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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。