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 (动物界)
Phylum	Magnoliophyta (木兰植物门)	Chordata (脊索动物门)
Class	Magnoliopsida (木兰纲)	Mammalia (哺乳動物)
Order	Asterales (菊目)	Carnivora (食肉目)
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

北极熊是地球上最大的陆地食肉动物，体重可超过700千克，分布于从加拿大到俄罗斯的北极海冰区。是高度特化的海洋哺乳动物，依赖海冰捕猎环斑海豹和髯海豹。是优秀的游泳者，能够横渡广阔的开阔水域。被列为易危种，因气候变化导致北极海冰迅速减少，种群正受到严重威胁。