vs Polar bear

Melanoleuca cognata compared with Ursus maritimus

Key Differences

  • is Least Concern 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 Tricholomataceae Ursidae (Bears)
Genus Melanoleuca Ursus (Bears)
Species Melanoleuca cognata Ursus maritimus

Conservation Status

LC — Least Concern

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

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, 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.

Melanoleuca cognata はバフ色から黄褐色の傘、密に並んだ淡色のひだ、やや繊維状の柄を持つ中型の褐色キノコである。ヨーロッパと北米全域の温帯落葉樹林と混交林の腐植質に富む土壌上に生育する。この腐生菌は林内土壌の落葉や埋没した木質材料を分解する。

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。

Shared Countries

Both species can be found in 1 countries:

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