Click beetle vs Polar bear

Athous pomboi compared with Ursus maritimus

Key Differences

• Click beetle is Critically Endangered while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Click beetle	Polar bear
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Arthropoda (節足動物)	Chordata (脊索動物)
Class	Insecta (昆虫)	Mammalia (哺乳類)
Order	Coleoptera (コウチュウ目)	Carnivora (ネコ目)
Family	Elateridae	Ursidae (Bears)
Genus	Athous	Ursus (Bears)
Species	Athous pomboi	Ursus maritimus

Evolutionary Relationship

Click beetle and Polar bear share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Click beetle

CR — Critically Endangered

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Click beetle	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Click beetle

Habitat

Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Portugal. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

Click beetle

Click Beetle 3 is a third entry for species sharing the common name click beetle within the diverse family Elateridae, reflecting the family's enormous species richness across global ecosystems. Click beetles exhibit considerable morphological variation, from drab, cryptically colored species common on bark and in soil to brilliantly metallic or spotted species found in tropical forest canopies. The click mechanism, unique to the family Elateridae and a few related families, involves a prosternal process that fits into a mesosternal cavity. When the beetle is inverted, muscular tension builds until the spine snaps into the cavity with an audible pop, launching the beetle upward. Adults are generally poor fliers but use this jumping ability effectively to escape predators and right themselves. The larval stage is typically the longest phase of the life cycle, often lasting two to five years, during which wireworms inhabit soil or decaying wood. Some click beetle species require old-growth forest conditions for successful reproduction and are used as indicator species for forest conservation assessments. The precise ecology, host associations, and conservation status of this entry depend on the specific species referenced.

Polar bear

地球上で最大の陸上肉食動物であるホッキョクグマは700kgを超えることがあり、カナダからロシアまでの北極海氷域全体に分布する。ワモンアザラシとヒゲアザラシを狩るために海氷に依存する高度に特化した海洋哺乳類である。広大な距離を泳ぐことができる優れた泳者でもある。脆弱種に指定されており、気候変動による急激な北極海氷の消失で個体群が深刻な圧力を受けている。