vs Polar bear

Chromosera cyanophylla compared with Ursus maritimus

Key Differences

is Critically Endangered while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Fungi (菌界)	Animalia (動物)
Phylum	Basidiomycota (担子菌門)	Chordata (脊索動物)
Class	Agaricomycetes (真正担子菌綱)	Mammalia (哺乳類)
Order	Agaricales (ハラタケ目)	Carnivora (ネコ目)
Family	Hygrophoraceae	Ursidae (Bears)
Genus	Chromosera	Ursus (Bears)
Species	Chromosera cyanophylla	Ursus maritimus

Conservation Status

CR — Critically Endangered

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

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

Distributed across Norway, Sweden, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Polar bear

Habitat

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Chromosera cyanophylla is a species of waxcap mushroom in the family Hygrophoraceae, found in old-growth and semi-natural grasslands across temperate Europe. It is particularly notable for producing fruiting bodies with a striking blue-violet or lilac coloration in the gills and stipe, as reflected in its species name, which translates approximately to blue-violet gills. The cap may be pale to ochre and the gills retain vivid blue-violet hues that are distinctive among grassland fungi. Waxcap grasslands are ecologically sensitive habitats dependent on long continuity of traditional pastoral management without artificial fertilizers. The communities of specialist fungi that develop in these habitats — including waxcaps, earthtongues, and pinkgills — take decades to centuries to develop and are destroyed rapidly by any intensification of land management. Chromosera cyanophylla is a species of conservation interest in several European countries and is included in national red lists where its populations have been assessed. The ongoing conversion of traditionally managed meadows and pastures to improved agricultural land represents the principal threat to this and many related waxcap species across Europe.

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。