vs Polar bear

Clostridium amylolyticum compared with Ursus maritimus

Key Differences

is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Bacteria (Bacteria)	Animalia (動物)
Phylum	Firmicutes_A	Chordata (脊索動物)
Class	Clostridia (クロストリジア)	Mammalia (哺乳類)
Order	Clostridiales (クロストリジウム目)	Carnivora (ネコ目)
Family	Clostridiaceae	Ursidae (Bears)
Genus	Clostridium	Ursus (Bears)
Species	Clostridium amylolyticum	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 amylolyticum is an anaerobic, endospore-forming bacterium in the family Clostridiaceae notable for its ability to ferment starch (amylon in Greek, giving the species epithet) and other complex carbohydrates to produce organic acids, alcohols, and gases. Like other members of the Clostridium genus, it is a strictly anaerobic rod-shaped bacterium that produces resistant endospores enabling survival in unfavorable environmental conditions, including exposure to heat, desiccation, and oxygen. C. amylolyticum is found in starch-rich anaerobic environments such as soil, sediments, and fermentation systems, where its amylolytic enzymes break down starch polymers into simpler sugars that are then fermented. The genus Clostridium is polyphyletic and has undergone extensive reclassification as molecular phylogenetics revealed it encompasses multiple distinct evolutionary lineages. Amylolytic clostridia have industrial applications in bioprocessing, particularly in biofuel production through simultaneous saccharification and fermentation of starchy biomass feedstocks, and in producing commodity chemicals through anaerobic fermentation.

Polar bear

地球上で最大の陸上肉食動物であるホッキョクグマは700kgを超えることがあり、カナダからロシアまでの北極海氷域全体に分布する。ワモンアザラシとヒゲアザラシを狩るために海氷に依存する高度に特化した海洋哺乳類である。広大な距離を泳ぐことができる優れた泳者でもある。脆弱種に指定されており、気候変動による急激な北極海氷の消失で個体群が深刻な圧力を受けている。