Polar bear vs striped freshwater nerite

Ursus maritimus compared with Theodoxus transversalis

Key Differences

• Polar bear is Vulnerable while striped freshwater nerite is Endangered.

Taxonomic Classification

Rank	Polar bear	striped freshwater nerite
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum	Chordata (Kordalılar)	Mollusca (Yumuşakçalar)
Class	Mammalia (memeliler)	Gastropoda (Karından bacaklılar)
Order	Carnivora (etçiller)	Cycloneritida (Cycloneritida)
Family	Ursidae (Bears)	Neritidae
Genus	Ursus (Bears)	Theodoxus
Species	Ursus maritimus	Theodoxus transversalis

Evolutionary Relationship

Polar bear and striped freshwater nerite share a common ancestor at the Kingdom level: Animalia. (hayvan)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

striped freshwater nerite

EN — Endangered

Physical Characteristics

Attribute	Polar bear	striped freshwater nerite
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.

striped freshwater nerite

Habitat

Inhabits Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Germany, Greece, and Norway. Currently classified as Endangered 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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway