Bobr Kanadskii vs Bely Medved

Castor canadensis compared with Ursus maritimus

Key Differences

• Bobr Kanadskii is Not Evaluated while Bely Medved is Vulnerable.
• Bobr Kanadskii is herbivore while Bely Medved is carnivore.
• Bely Medved is 18.0x heavier than Bobr Kanadskii.
• Bely Medved lives longer (25 years vs 15 years).

Taxonomic Classification

Rank	Bobr Kanadskii	Bely Medved
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order	Rodentia (грызуны)	Carnivora (хищные)
Family	Castoridae (Beavers)	Ursidae (Bears)
Genus	Castor (Beavers)	Ursus (Bears)
Species	Castor canadensis	Ursus maritimus

Evolutionary Relationship

Bobr Kanadskii and Bely Medved share a common ancestor at the Class level: Mammalia. (млекопитающие)

Conservation Status

Bobr Kanadskii

NE — Not Evaluated

Population: ~15.0M

Trend: Stable →

Bely Medved

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bobr Kanadskii	Bely Medved
Diet	Herbivore	Carnivore
Average Lifespan	15 years	25 years
Average Length	1.0 m	2.4 m
Average Weight	25.0 kg	450.0 kg

Habitat & Geographic Range

Bobr Kanadskii

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Widely distributed across Europe (15 countries), North America (United States), and South America (Argentina, Chile).

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.

Bobr Kanadskii

The largest rodent in North America, Canadian beavers weigh up to 32 kg and are master ecosystem engineers inhabiting rivers, lakes, and wetlands across Canada and the northern United States. By felling trees and constructing dams up to hundreds of meters long, beavers create ponds that provide habitat for hundreds of species. Their lodges and canals transform entire watersheds. Once nearly hunted to extinction for their fur, beaver populations have recovered strongly.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway