Polar bear vs

Ursus maritimus compared with Rhodomonas abbreviata

Key Differences

• Polar bear is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (动物界)	Chromista (色藻界)
Phylum	Chordata (脊索动物门)	Cryptophyta
Class	Mammalia (哺乳動物)	Cryptophyceae (隐藻纲)
Order	Carnivora (食肉目)	Pyrenomonadales (单核胞藻目)
Family	Ursidae (Bears)	Pyrenomonadaceae
Genus	Ursus (Bears)	Rhodomonas
Species	Ursus maritimus	Rhodomonas abbreviata

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

NE — Not Evaluated

Physical Characteristics

Attribute	Polar bear
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Polar bear

北极熊是地球上最大的陆地食肉动物，体重可超过700千克，分布于从加拿大到俄罗斯的北极海冰区。是高度特化的海洋哺乳动物，依赖海冰捕猎环斑海豹和髯海豹。是优秀的游泳者，能够横渡广阔的开阔水域。被列为易危种，因气候变化导致北极海冰迅速减少，种群正受到严重威胁。

缩短红隐藻（Rhodomonas abbreviata）是隐球藻科的光合隐藻类鞭毛虫，具有两条不等长鞭毛和赋予其红色的特征性藻红蛋白色素，细胞小而扁平。栖居于海洋和半咸水沿岸水域，是纳米浮游植物群落的重要组成部分。此类隐藻是浮游动物和异养原生生物的重要食物来源。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway