Bely Medved vs Shaw Mayer’s Water Rat

Ursus maritimus compared with Baiyankamys shawmayeri

Key Differences

• Bely Medved is Vulnerable while Shaw Mayer’s Water Rat is Least Concern.

Taxonomic Classification

Rank	Bely Medved	Shaw Mayer’s Water Rat
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order	Carnivora (хищные)	Rodentia (грызуны)
Family	Ursidae (Bears)	Muridae (Mice & Rats)
Genus	Ursus (Bears)	Baiyankamys
Species	Ursus maritimus	Baiyankamys shawmayeri

Evolutionary Relationship

Bely Medved and Shaw Mayer’s Water Rat share a common ancestor at the Class level: Mammalia. (млекопитающие)

Conservation Status

Bely Medved

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Shaw Mayer’s Water Rat

LC — Least Concern

Physical Characteristics

Attribute	Bely Medved	Shaw Mayer’s Water Rat
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.

Shaw Mayer’s Water Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.