vs Polar bear

Bacillus thuringiensis 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	Firmicutes (厚壁菌門)	Chordata (脊索动物门)
Class	Bacilli (芽孢桿菌綱)	Mammalia (哺乳動物)
Order	Bacillales (芽孢杆菌目)	Carnivora (食肉目)
Family	Bacillaceae	Ursidae (Bears)
Genus	Bacillus	Ursus (Bears)
Species	Bacillus thuringiensis	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 Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Sweden and Taiwan.

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.

苏云金杆菌（Bacillus thuringiensis）是一种革兰氏阳性土壤细菌，能产生对多种昆虫具有高度毒性的晶体蛋白。该物种在生物防治领域具有极其重要的价值，其毒素基因已被广泛应用于转基因抗虫作物的研发中。

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。