vs Polar bear

Alexandrium minutum compared with Ursus maritimus

Key Differences

• is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Chromista (色藻界)	Animalia (动物界)
Phylum	Myzozoa (黏孢门)	Chordata (脊索动物门)
Class	Dinophyceae (横裂甲藻纲)	Mammalia (哺乳動物)
Order	Gonyaulacales (膝沟藻目)	Carnivora (食肉目)
Family	Ostreopsidaceae	Ursidae (Bears)
Genus	Alexandrium	Ursus (Bears)
Species	Alexandrium minutum	Ursus maritimus

Conservation Status

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Habitat

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

Range

Widely distributed across Africa (Egypt, South Africa), Asia (4 countries), Europe (8 countries), North America (Mexico), and Oceania and the Pacific (Australia).

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.

微小亚历山大藻（Alexandrium minutum）是一种小型有甲壳的海洋甲藻，以产生麻痹性贝毒（PSP）毒素著称，是导致赤潮和贝类毒素污染的重要肇因之一。该物种广泛分布于全球温带和热带沿海水域，在适宜条件下可大量繁殖形成有害藻华。其毒素对人类食用受污染贝类后的健康构成潜在威胁。

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。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway