Arctic Hiatella vs Polar bear

Hiatella arctica compared with Ursus maritimus

Key Differences

• Arctic Hiatella is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Arctic Hiatella	Polar bear
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Mollusca (มอลลัสกา)	Chordata (สัตว์มีแกนสันหลัง)
Class	Bivalvia (ชั้นไบวาลเวีย)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Adapedonta (Adapedonta)	Carnivora (สัตว์กินเนื้อ)
Family	Hiatellidae	Ursidae (Bears)
Genus	Hiatella	Ursus (Bears)
Species	Hiatella arctica	Ursus maritimus

Evolutionary Relationship

Arctic Hiatella and Polar bear share a common ancestor at the Kingdom level: Animalia. (สัตว์)

Conservation Status

Arctic Hiatella

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Arctic Hiatella

Habitat

Native to Africa and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Africa (South Africa), Europe (5 countries), North America (United States), and South America (Chile).

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.

Arctic Hiatella

The Arctic Hiatella (Hiatella arctica) is a species in the genus Hiatella. It is currently classified as Least Concern on the IUCN Red List. Native to Africa and Europe and North America, inhabiting ecosystems characteristic of the region.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway