koala vs violet risso

Phascolarctos cinereus compared with Rissoa violacea

Key Differences

• koala is Vulnerable while violet risso is Not Evaluated.

Taxonomic Classification

Rank	koala	violet risso
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Mollusca (软体动物门)
Class	Mammalia (哺乳動物)	Gastropoda (腹足纲)
Order	Diprotodontia (雙門齒目)	Littorinimorpha (滨螺形目)
Family	Phascolarctidae (Koalas)	Rissoidae
Genus	Phascolarctos (Koalas)	Rissoa
Species	Phascolarctos cinereus	Rissoa violacea

Evolutionary Relationship

koala and violet risso share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

violet risso

NE — Not Evaluated

Physical Characteristics

Attribute	koala	violet risso
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.

violet risso

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Denmark and Norway.

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。