Common brighteyes vs Polar bear

Reichardia picroides compared with Ursus maritimus

Key Differences

Common brighteyes is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Common brighteyes	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	Asterales (キク目)	Carnivora (ネコ目)
Family	Asteraceae (Daisy Family)	Ursidae (Bears)
Genus	Reichardia	Ursus (Bears)
Species	Reichardia picroides	Ursus maritimus

Conservation Status

Common brighteyes

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Common brighteyes

Habitat

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

Range

Distributed across Portugal, Sweden, and United States.

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 brighteyes

Common brighteyes (<em>Reichardia picroides</em>) is a perennial herb species found in Portugal, Sweden, and the United States, typically inhabiting diverse terrestrial environments across its range. As a member of the family Asteraceae, this species often produces yellow dandelion-like flowerheads and is commonly found in open, dry, and disturbed habitats such as roadsides, waste ground, and coastal areas. The common brighteyes has not been formally evaluated on the IUCN Red List. Originally native to the Mediterranean basin and parts of the Middle East, the species has spread to numerous other regions where it is considered naturalized. It typically grows in well-drained soils in full sunlight, showing a preference for rocky or sandy substrates in coastal and inland locations. The species is often associated with ruderal habitats and represents an adaptable pioneer in disturbed ecosystems. 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。