Polar bear vs

Ursus maritimus compared with Tenacibaculum aiptasiae

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)	Bacteroidota (拟杆菌门)
Class	Mammalia (哺乳動物)	Bacteroidia (擬桿菌綱)
Order	Carnivora (食肉目)	Flavobacteriales (黄杆菌目)
Family	Ursidae (Bears)	Flavobacteriaceae
Genus	Ursus (Bears)	Tenacibaculum
Species	Ursus maritimus	Tenacibaculum aiptasiae

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。

Tenacibaculum aiptasiae是Flavobacteriaceae科的革兰氏阴性海洋细菌，最初从海葵Aiptasia中分离得到。这是一种适应与海洋无脊椎动物宿主共生生活的滑行、杆状微生物。Tenacibaculum属广泛分布于海洋环境中，部分种类已知是鱼类病原体。