Leafy Rolled-blade Algae vs Polar bear

Padina boergesenii compared with Ursus maritimus

Key Differences

• Leafy Rolled-blade Algae is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Leafy Rolled-blade Algae	Polar bear
Kingdom	Chromista (クロミスタ)	Animalia (動物)
Phylum	Ochrophyta (オクロ植物)	Chordata (脊索動物)
Class	Phaeophyceae (褐藻)	Mammalia (哺乳類)
Order	Dictyotales (Dictyotales)	Carnivora (ネコ目)
Family	Dictyotaceae	Ursidae (Bears)
Genus	Padina	Ursus (Bears)
Species	Padina boergesenii	Ursus maritimus

Conservation Status

Leafy Rolled-blade Algae

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Leafy Rolled-blade Algae	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Leafy Rolled-blade Algae

Habitat

Native to Africa and Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Africa (Libya), Asia (Israel, Lebanon), Europe (Italy, Malta), and South America (Brazil).

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。