vs Polar bear

Clostridium celerecrescens compared with Ursus maritimus

Key Differences

is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Bacteria (Bacteria)	Animalia (สัตว์)
Phylum	Firmicutes_A	Chordata (สัตว์มีแกนสันหลัง)
Class	Clostridia (Clostridia)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Clostridiales (Clostridiales)	Carnivora (สัตว์กินเนื้อ)
Family	Clostridiaceae	Ursidae (Bears)
Genus	Clostridium	Ursus (Bears)
Species	Clostridium celerecrescens	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, inhabiting ecosystems characteristic of the region.

Range

Found in 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.

Clostridium celerecrescens is an anaerobic, endospore-forming bacterium in the family Clostridiaceae whose species epithet celerecrescens reflects its notably rapid growth rate compared to many other clostridia, which typically grow more slowly under anaerobic conditions. It is found in anaerobic environments including soils, sediments, and the digestive tracts of animals where fermentation of carbohydrates and organic compounds occurs. Like all Clostridium species, it is a strictly anaerobic, Gram-positive, rod-shaped bacterium capable of producing resistant endospores that permit survival under environmental stresses. The rapid growth phenotype of C. celerecrescens makes it of potential interest for industrial biotechnology applications where fast colonization and fermentation rates are advantageous, including in bioremediation of contaminated anaerobic environments or in bioprocessing systems designed to convert organic substrates into valuable products through anaerobic fermentation. The genus Clostridium represents one of the most metabolically diverse groups of bacteria, encompassing species producing ethanol, butanol, hydrogen gas, and various organic acids from diverse carbon sources.

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.