arran brown vs Polar bear

Erebia ligea compared with Ursus maritimus

Key Differences

• arran brown is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	arran brown	Polar bear
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Arthropoda (节肢动物门)	Chordata (脊索动物门)
Class	Insecta (昆蟲綱)	Mammalia (哺乳動物)
Order	Lepidoptera (鱗翅目)	Carnivora (食肉目)
Family	Nymphalidae (Brush-footed Butterflies)	Ursidae (Bears)
Genus	Erebia	Ursus (Bears)
Species	Erebia ligea	Ursus maritimus

Evolutionary Relationship

arran brown and Polar bear share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

arran brown

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	arran brown	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

arran brown

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (33 countries).

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.

arran brown

阿兰棕蝶（Erebia ligea）是一种中型蝴蝶，翅膀呈深棕色，翅缘具橙色条纹，主要分布于欧洲和亚洲北部。该物种的保护状态为无危（LC），栖息于高山草地和林间空地等生境。

Polar bear

北极熊是地球上最大的陆地食肉动物，体重可超过700千克，分布于从加拿大到俄罗斯的北极海冰区。是高度特化的海洋哺乳动物，依赖海冰捕猎环斑海豹和髯海豹。是优秀的游泳者，能够横渡广阔的开阔水域。被列为易危种，因气候变化导致北极海冰迅速减少，种群正受到严重威胁。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway