boreal topsnail vs koala

Calliostoma occidentale compared with Phascolarctos cinereus

Key Differences

• boreal topsnail is Not Evaluated while koala is Vulnerable.

Taxonomic Classification

Rank	boreal topsnail	koala
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Mollusca (软体动物门)	Chordata (脊索动物门)
Class	Gastropoda (腹足纲)	Mammalia (哺乳動物)
Order	Trochida (马蹄螺目)	Diprotodontia (雙門齒目)
Family	Calliostomatidae	Phascolarctidae (Koalas)
Genus	Calliostoma	Phascolarctos (Koalas)
Species	Calliostoma occidentale	Phascolarctos cinereus

Evolutionary Relationship

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

Conservation Status

boreal topsnail

NE — Not Evaluated

koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	boreal topsnail	koala
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	75 cm
Average Weight	—	10.0 kg

Habitat & Geographic Range

boreal topsnail

Habitat

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

Range

Distributed across Canada, Norway, and Sweden.

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.

boreal topsnail

The Boreal Topsnail (Calliostoma occidentale) is a species in the genus Calliostoma. Typically found in terrestrial and aquatic habitats including forests and freshwater.

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。