Dahurian Buckthorn vs Polar bear

Rhamnus davuricus compared with Ursus maritimus

Key Differences

• Dahurian Buckthorn is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Dahurian Buckthorn	Polar bear
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Rosales (Roses & Allies)	Carnivora (Carnivorans)
Family	Rhamnaceae	Ursidae (Bears)
Genus	Rhamnus	Ursus (Bears)
Species	Rhamnus davuricus	Ursus maritimus

Conservation Status

Dahurian Buckthorn

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Dahurian Buckthorn

Habitat

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

Range

Distributed across Armenia, Canada, 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.

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.