vs Polar bear

Comatricha suksdorfii compared with Ursus maritimus

Key Differences

is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Protozoa (原生動物)	Animalia (動物)
Phylum	Mycetozoa	Chordata (脊索動物)
Class	Myxomycetes (変形菌綱)	Mammalia (哺乳類)
Order	Stemonitidales	Carnivora (ネコ目)
Family	Stemonitidaceae	Ursidae (Bears)
Genus	Comatricha	Ursus (Bears)
Species	Comatricha suksdorfii	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 Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Norway, and Sweden.

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.

Comatricha suksdorfii is a plasmodial slime mold in the order Stemonitidales, class Myxomycetes, named in honor of botanist Wilhelm Nikolaus Suksdorf. As a member of the genus Comatricha, it is characterized by stalked, cylindrical or ovoid sporangia supported by a persistent stalk, with an internal capillitium assisting in spore dispersal. The species inhabits decomposing woody substrates and moist forest litter, where the vegetative plasmodium feeds on bacteria and other microorganisms. Environmental or nutritional cues trigger aggregation and differentiation into fruiting bodies, from which spores are released into the air. C. suksdorfii participates in nutrient cycling and decomposition processes in its woodland habitat. No specific geographic range data are recorded in the current record, and no quantitative biological traits are applicable to this organism. The species has not been evaluated by the IUCN.

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。