vs Polar bear

Clavaria pullei compared with Ursus maritimus

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	Clavariaceae	Ursidae (Bears)
Genus	Clavaria	Ursus (Bears)
Species	Clavaria pullei	Ursus maritimus

Conservation Status

VU — Vulnerable

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

Clavaria pullei is a coral fungus in the family Clavariaceae with a tropical distribution, described from specimens collected in South America and named for August Adriaan Pulle, a Dutch botanist who contributed extensively to knowledge of Surinamese flora. The genus Clavaria in the broad sense includes a diverse array of simple-clavate to sparingly branched fruiting bodies that occur across tropical, subtropical, and temperate forest soils and grasslands worldwide. Tropical Clavaria species are less well studied than their temperate counterparts, and the taxonomy of the group in South America remains incompletely resolved. Clavaria pullei likely occupies a saprotrophic niche in humid forest ecosystems, decomposing leaf litter and organic debris on the forest floor. Fruiting bodies are typically small, slender, and whitish to pale buff, though precise morphological details depend on the type specimen. The species reflects broader patterns of fungal diversity in neotropical forests, where the majority of fungal biodiversity remains undescribed or poorly documented. Conservation status has not been formally evaluated, and little is known about the ecology, population size, or current distribution of this species beyond the original type description.

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。