Castor bean tick vs Polar bear

Ixodes ricinus compared with Ursus maritimus

Key Differences

• Castor bean tick is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Castor bean tick	Polar bear
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Arthropoda (สัตว์ขาปล้อง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Arachnida (แมง)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Ixodida (Ixodida)	Carnivora (สัตว์กินเนื้อ)
Family	Ixodidae	Ursidae (Bears)
Genus	Ixodes	Ursus (Bears)
Species	Ixodes ricinus	Ursus maritimus

Evolutionary Relationship

Castor bean tick and Polar bear share a common ancestor at the Kingdom level: Animalia. (สัตว์)

Conservation Status

Castor bean tick

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Castor bean tick	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Castor bean tick

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Found across Asia (Taiwan) and Europe (7 countries).

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.

Castor bean tick

The Castor bean tick (Ixodes ricinus) is a species in the genus Ixodes. 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