ours blanc vs Raft Spider

Ursus maritimus compared with Dolomedes fimbriatus

Key Differences

• ours blanc is Vulnerable while Raft Spider is Critically Endangered.

Taxonomic Classification

Rank	ours blanc	Raft Spider
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Chordata (Chordates)	Arthropoda (arthropodes)
Class	Mammalia (mammifères)	Arachnida (Arachnids)
Order	Carnivora (carnivores)	Araneae (araignée)
Family	Ursidae (Bears)	Pisauridae
Genus	Ursus (Bears)	Dolomedes
Species	Ursus maritimus	Dolomedes fimbriatus

Evolutionary Relationship

ours blanc and Raft Spider share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

ours blanc

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Raft Spider

CR — Critically Endangered

Physical Characteristics

Attribute	ours blanc	Raft Spider
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.

Raft Spider

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway