Polar bear vs ケアシノスリ

Ursus maritimus compared with Buteo lagopus

Key Differences

• Polar bear is Vulnerable while ケアシノスリ is Near Threatened.

Taxonomic Classification

Rank	Polar bear	ケアシノスリ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Aves (鳥類)
Order	Carnivora (ネコ目)	Accipitriformes (タカ目)
Family	Ursidae (Bears)	Accipitridae (Hawks & Eagles)
Genus	Ursus (Bears)	Buteo
Species	Ursus maritimus	Buteo lagopus

Evolutionary Relationship

Polar bear and ケアシノスリ share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

ケアシノスリ

NT — Near Threatened

Physical Characteristics

Attribute	Polar bear	ケアシノスリ
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic 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.

ケアシノスリ

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (5 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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。

ケアシノスリ

Rough-Legged Buzzard（Buteo lagopus）は IUCN レッドリストで準絶滅危惧（NT）に分類されている。絶滅危惧の基準に近く、保全措置なしには脆弱な状態になる可能性のある個体群を持つ。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway