Common Hawthorn vs Polar bear

Crataegus monogyna compared with Ursus maritimus

Key Differences

Common Hawthorn is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Common Hawthorn	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	Rosales (バラ目)	Carnivora (ネコ目)
Family	Rosaceae (Rose Family)	Ursidae (Bears)
Genus	Crataegus	Ursus (Bears)
Species	Crataegus monogyna	Ursus maritimus

Conservation Status

Common Hawthorn

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Common Hawthorn

Habitat

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

Range

Widely distributed across Africa (South Africa), Asia (India), Europe (9 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina, Chile, 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 Hawthorn

The common hawthorn, <em>Crataegus monogyna</em>, is a flowering shrub or small tree belonging to the family Rosaceae. This species has one of the widest distributions of any hawthorn, with its range encompassing Africa, Asia, Europe, North America, Oceania, and South America, reflecting both its native Eurasian distribution and extensive introduction worldwide. <em>Crataegus monogyna</em> is typically found in hedgerows, woodland edges, scrubland, and disturbed habitats across a broad range of temperate climates. It is assessed as Least Concern on the IUCN Red List, indicating widespread and stable populations. The species produces white flowers in spring and small red berries, known as haws, in autumn, which provide important food resources for birds and other wildlife. No dietary information has been provided for this species. 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。