Polar bear vs

Ursus maritimus compared with Stemonaria pilosa

Key Differences

• Polar bear is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (动物界)	Protozoa (原生動物)
Phylum	Chordata (脊索动物门)	Mycetozoa
Class	Mammalia (哺乳動物)	Myxomycetes (黏菌纲)
Order	Carnivora (食肉目)	Stemonitidales
Family	Ursidae (Bears)	Stemonitidaceae
Genus	Ursus (Bears)	Stemonaria
Species	Ursus maritimus	Stemonaria pilosa

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 Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Sweden, and Taiwan.

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。

Stemonaria pilosa 是一种黏菌，在林地环境的腐烂木质植物材料上形成覆有细毛的微小孢子囊。与其他黏菌一样，在形成繁殖结构之前经历变形虫状原质团阶段。该生物以森林枯枝落叶和木材中的细菌和真菌孢子为食，在微生物群落生态中发挥作用。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway