Polar bear vs

Ursus maritimus compared with Sporosarcina aquimarina

Key Differences

• Polar bear is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (प्राणी)	Bacteria (Bacteria)
Phylum	Chordata (रज्जुकी)	Firmicutes (फ़र्मीक्यूटीस)
Class	Mammalia (स्तनधारी)	Bacilli (बैसिलाए)
Order	Carnivora (मांसाहारी गण)	Bacillales_A
Family	Ursidae (Bears)	Planococcaceae
Genus	Ursus (Bears)	Sporosarcina
Species	Ursus maritimus	Sporosarcina aquimarina

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

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.

Sporosarcina aquimarina is a Gram-positive, endospore-forming bacterium in the family Planococcaceae, isolated from marine coastal environments. It forms characteristic tetrad or sarcinal clusters of cocci and can produce heat-resistant endospores allowing survival under environmental stress. Members of Sporosarcina have attracted interest for their ability to induce calcium carbonate precipitation, with applications in biocementation.