Bely Medved vs Thorny river stingray

Ursus maritimus compared with Potamotrygon constellata

Key Differences

Bely Medved is Vulnerable while Thorny river stingray is Data Deficient.

Taxonomic Classification

Rank	Bely Medved	Thorny river stingray
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Mammalia (млекопитающие)	Elasmobranchii
Order	Carnivora (хищные)	Myliobatiformes (хвостоколообразные)
Family	Ursidae (Bears)	Potamotrygonidae
Genus	Ursus (Bears)	Potamotrygon
Species	Ursus maritimus	Potamotrygon constellata

Evolutionary Relationship

Bely Medved and Thorny river stingray share a common ancestor at the Phylum level: Chordata. (хордовые)

Просмотреть Phylum: Chordata

Conservation Status

Bely Medved

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Thorny river stingray

DD — Data Deficient

Physical Characteristics

Attribute	Bely Medved	Thorny river stingray
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

Bely Medved

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.

Thorny river stingray

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Colombia.

Bely Medved

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.