American Dog Tick vs Polar bear

Dermacentor variabilis compared with Ursus maritimus

Key Differences

• American Dog Tick is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	American Dog Tick	Polar bear
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Arachnida (Arachnids)	Mammalia (Mammals)
Order	Ixodida (Ixodida)	Carnivora (Carnivorans)
Family	Ixodidae	Ursidae (Bears)
Genus	Dermacentor	Ursus (Bears)
Species	Dermacentor variabilis	Ursus maritimus

Evolutionary Relationship

American Dog Tick and Polar bear share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

American Dog Tick

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	American Dog Tick	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

American Dog Tick

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Distributed across Denmark, Norway, Sweden, and United States.

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.

American Dog Tick

The American Dog Tick (Dermacentor variabilis) is a species in the genus Dermacentor. Typically found in terrestrial habitats from forests to deserts.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway