Polar bear vs Potato rot nematode

Ursus maritimus compared with Ditylenchus destructor

Key Differences

Polar bear is Vulnerable while Potato rot nematode is Not Evaluated.

Taxonomic Classification

Rank	Polar bear	Potato rot nematode
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Nematoda (Roundworms)
Class	Mammalia (Mammals)	Chromadorea (Chromadorea)
Order	Carnivora (Carnivorans)	Rhabditida (Rhabditida)
Family	Ursidae (Bears)	Anguinidae
Genus	Ursus (Bears)	Ditylenchus
Species	Ursus maritimus	Ditylenchus destructor

Evolutionary Relationship

Polar bear and Potato rot nematode share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Potato rot nematode

NE — Not Evaluated

Physical Characteristics

Attribute	Polar bear	Potato rot nematode
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

Polar bear

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.

Potato rot nematode

Habitat

Native to Africa and Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Africa (South Africa), Asia (Cyprus), and Europe (27 countries).

Polar bear

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.