Disappearing Soil Slug vs Polar bear

Arion occultus compared with Ursus maritimus

Key Differences

• Disappearing Soil Slug is Data Deficient while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Disappearing Soil Slug	Polar bear
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Mollusca (軟体動物)	Chordata (脊索動物)
Class	Gastropoda (腹足綱)	Mammalia (哺乳類)
Order	Stylommatophora (Stylommatophora)	Carnivora (ネコ目)
Family	Arionidae	Ursidae (Bears)
Genus	Arion	Ursus (Bears)
Species	Arion occultus	Ursus maritimus

Evolutionary Relationship

Disappearing Soil Slug and Polar bear share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Disappearing Soil Slug

DD — Data Deficient

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Disappearing Soil Slug	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Disappearing Soil Slug

Habitat

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

Range

Found in Ireland.

Polar bear

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Polar bear

地球上で最大の陸上肉食動物であるホッキョクグマは700kgを超えることがあり、カナダからロシアまでの北極海氷域全体に分布する。ワモンアザラシとヒゲアザラシを狩るために海氷に依存する高度に特化した海洋哺乳類である。広大な距離を泳ぐことができる優れた泳者でもある。脆弱種に指定されており、気候変動による急激な北極海氷の消失で個体群が深刻な圧力を受けている。