Eisbär vs Tomes's Rice Rat

Ursus maritimus compared with Nephelomys albigularis

Key Differences

• Eisbär is Vulnerable while Tomes's Rice Rat is Least Concern.

Taxonomic Classification

Rank	Eisbär	Tomes's Rice Rat
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order	Carnivora (Raubtiere)	Rodentia (Nagetiere)
Family	Ursidae (Bears)	Cricetidae
Genus	Ursus (Bears)	Nephelomys
Species	Ursus maritimus	Nephelomys albigularis

Evolutionary Relationship

Eisbär and Tomes's Rice Rat share a common ancestor at the Class level: Mammalia. (Säugetiere)

Conservation Status

Eisbär

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Tomes's Rice Rat

LC — Least Concern

Physical Characteristics

Attribute	Eisbär	Tomes's Rice Rat
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

Eisbär

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.

Tomes's Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Eisbär

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.