large tortoiseshell vs Polar bear

Nymphalis polychloros compared with Ursus maritimus

Key Differences

large tortoiseshell is Critically Endangered while Polar bear is Vulnerable.

Taxonomic Classification

Rank	large tortoiseshell	Polar bear
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Arthropoda (節足動物)	Chordata (脊索動物)
Class	Insecta (昆虫)	Mammalia (哺乳類)
Order	Lepidoptera (チョウ目)	Carnivora (ネコ目)
Family	Nymphalidae (Brush-footed Butterflies)	Ursidae (Bears)
Genus	Nymphalis	Ursus (Bears)
Species	Nymphalis polychloros	Ursus maritimus

Evolutionary Relationship

large tortoiseshell and Polar bear share a common ancestor at the Kingdom level: Animalia. (動物)

表示 Kingdom: Animalia

Conservation Status

large tortoiseshell

CR — Critically Endangered

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

large tortoiseshell

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 9 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (39 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

large tortoiseshell

オオキタテハ（Nymphalis polychloros）はIUCNレッドリストで絶滅危惧IA類（CR）に分類されている。深刻な個体数の減少と生息地の喪失により、野生での絶滅リスクが極めて高い状況にある。

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。