vs Polar bear

Beggiatoa leptomitiformis compared with Ursus maritimus

Key Differences

• is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Bacteria (Bacteria)	Animalia (动物界)
Phylum	Proteobacteria (變形菌門)	Chordata (脊索动物门)
Class	Gammaproteobacteria (γ-变形菌纲)	Mammalia (哺乳動物)
Order	Beggiatoales (贝日阿托氏菌目)	Carnivora (食肉目)
Family	Beggiatoaceae	Ursidae (Bears)
Genus	Beggiatoa	Ursus (Bears)
Species	Beggiatoa leptomitiformis	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 Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Sweden.

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.

Beggiatoa leptomitiformis是一种丝状硫氧化细菌，在富含硫化物的水生沉积物和热液环境中形成滑行菌垫。它以氧化硫化氢为能量来源，在缺氧栖息地的硫循环中发挥重要作用。其保育状况未经评估。

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。