Polar bear vs

Ursus maritimus compared with Tulostoma fimbriatum

Key Differences

Polar bear is Vulnerable while is Endangered.

Taxonomic Classification

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

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

EN — Endangered

Physical Characteristics

Attribute	Polar bear
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

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.

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 5 distinct biome types within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

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。

Tulostoma fimbratumは、ヨーロッパ以外の地域を含む乾燥した砂質または石灰質土壌の開けた環境、砂丘、短草草地、ステップに生育する有柄のホコリタケ(スティルトボール)菌類です。細い柄の上に小さな丸い胞子嚢が乗り、先端の口部(外皮膜孔)から胞子を放出します。絶滅危惧種に分類されるこの独特な種は、短い開放的な草地の消失と砂の安定化による脅威にさらされています。