ours blanc vs Silver-bellied Ichthyomyine

Ursus maritimus compared with Ichthyomys hydrobates

Key Differences

• ours blanc is Vulnerable while Silver-bellied Ichthyomyine is Near Threatened.

Taxonomic Classification

Rank	ours blanc	Silver-bellied Ichthyomyine
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mammifères)	Mammalia (mammifères)
Order	Carnivora (carnivores)	Rodentia (Rodents)
Family	Ursidae (Bears)	Cricetidae
Genus	Ursus (Bears)	Ichthyomys
Species	Ursus maritimus	Ichthyomys hydrobates

Evolutionary Relationship

ours blanc and Silver-bellied Ichthyomyine share a common ancestor at the Class level: Mammalia. (mammifères)

Conservation Status

ours blanc

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Silver-bellied Ichthyomyine

NT — Near Threatened

Physical Characteristics

Attribute	ours blanc	Silver-bellied Ichthyomyine
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

ours blanc

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.

Silver-bellied Ichthyomyine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

ours blanc

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.