Polar bear vs

Ursus maritimus compared with Sporosarcina saromensis

Key Differences

• Polar bear is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (动物界)	Bacteria (Bacteria)
Phylum	Chordata (脊索动物门)	Firmicutes (厚壁菌門)
Class	Mammalia (哺乳動物)	Bacilli (芽孢桿菌綱)
Order	Carnivora (食肉目)	Bacillales_A
Family	Ursidae (Bears)	Planococcaceae
Genus	Ursus (Bears)	Sporosarcina
Species	Ursus maritimus	Sporosarcina saromensis

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, inhabiting ecosystems characteristic of the region.

Range

Found in 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。

Sporosarcina saromensis 是从日本北海道盐水湖佐吕间湖中分离的革兰氏阳性产孢球菌。适应原产地典型的冷凉和中度盐碱条件。与其他 Sporosarcina 种一样，可形成耐性内生孢子，部分菌株表现出与生物矿化研究相关的碳酸盐沉淀活性。