Common Cottonwood vs Polar bear

Populus deltoides compared with Ursus maritimus

Key Differences

Common Cottonwood is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Common Cottonwood	Polar bear
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Chordata (脊索動物)
Class	Magnoliopsida (モクレン綱)	Mammalia (哺乳類)
Order	Malpighiales (キントラノオ目)	Carnivora (ネコ目)
Family	Salicaceae	Ursidae (Bears)
Genus	Populus	Ursus (Bears)
Species	Populus deltoides	Ursus maritimus

Conservation Status

Common Cottonwood

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Common Cottonwood

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Africa (South Africa), Asia (4 countries), Europe (17 countries), North America (United States), and South America (Brazil, Colombia).

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.

Common Cottonwood

<em>Populus deltoides</em>, commonly known as common cottonwood or eastern cottonwood, is a large, fast-growing deciduous tree in the family Salicaceae. It is native to North America but has been widely planted and naturalized in Africa, Asia, Europe, and South America. Common cottonwood typically grows along rivers, streams, floodplains, and other moist bottomland habitats, where it can reach heights of 30 meters or more. The species is named for the cottony white fibers attached to its seeds, which are released in massive quantities in early summer and can create a snow-like appearance in the landscape. Its triangular, toothed leaves flutter characteristically in the slightest breeze due to their flattened petioles. Cottonwood is an important riparian tree providing habitat for birds, insects, and mammals. Biological traits of this species remain poorly documented in the scientific literature.

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。