Atlantic armhook squid vs Polar bear

Gonatus steenstrupi compared with Ursus maritimus

Key Differences

Atlantic armhook squid is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Atlantic armhook squid	Polar bear
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Mollusca (軟体動物)	Chordata (脊索動物)
Class	Cephalopoda (頭足類)	Mammalia (哺乳類)
Order	Oegopsida (開眼目)	Carnivora (ネコ目)
Family	Gonatidae	Ursidae (Bears)
Genus	Gonatus	Ursus (Bears)
Species	Gonatus steenstrupi	Ursus maritimus

Evolutionary Relationship

Atlantic armhook squid and Polar bear share a common ancestor at the Kingdom level: Animalia. (動物)

表示 Kingdom: Animalia

Conservation Status

Atlantic armhook squid

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Atlantic armhook squid	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Atlantic armhook squid

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Norway.

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.

Atlantic armhook squid

The Atlantic armhook squid (Gonatus steenstrupi) is a species in the genus Gonatus. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

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。