Polar bear vs Prickly Russian Thistle

Ursus maritimus compared with Salsola tragus

Key Differences

Polar bear is Vulnerable while Prickly Russian Thistle is Not Evaluated.

Taxonomic Classification

Rank	Polar bear	Prickly Russian Thistle
Kingdom	Animalia (สัตว์)	Plantae (พืช)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Magnoliophyta (Flowering Plants)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Magnoliopsida (พืชใบเลี้ยงคู่)
Order	Carnivora (สัตว์กินเนื้อ)	Caryophyllales (อันดับคาร์เนชัน)
Family	Ursidae (Bears)	Amaranthaceae
Genus	Ursus (Bears)	Salsola
Species	Ursus maritimus	Salsola tragus

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Prickly Russian Thistle

NE — Not Evaluated

Physical Characteristics

Attribute	Polar bear	Prickly Russian Thistle
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic 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.

Prickly Russian Thistle

Habitat

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

Range

Widely distributed across Africa (Lesotho, South Africa), Europe (8 countries), and North America (Canada, United States).

Polar bear

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.