Polar bear vs Tropical Acidweed

Ursus maritimus compared with Desmarestia tropica

Key Differences

• Polar bear is Vulnerable while Tropical Acidweed is Critically Endangered.

Taxonomic Classification

Rank	Polar bear	Tropical Acidweed
Kingdom	Animalia (動物)	Chromista (クロミスタ)
Phylum	Chordata (脊索動物)	Ochrophyta (オクロ植物)
Class	Mammalia (哺乳類)	Phaeophyceae (褐藻)
Order	Carnivora (ネコ目)	Desmarestiales (Desmarestiales)
Family	Ursidae (Bears)	Desmarestiaceae
Genus	Ursus (Bears)	Desmarestia
Species	Ursus maritimus	Desmarestia tropica

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Tropical Acidweed

CR — Critically Endangered

Physical Characteristics

Attribute	Polar bear	Tropical Acidweed
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.

Tropical Acidweed

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。