Polar bear vs Two-faced harp ground beetle
Ursus maritimus compared with Amara bifrons
Key Differences
- Polar bear is Vulnerable while Two-faced harp ground beetle is Near Threatened.
Taxonomic Classification
| Rank | Polar bear | Two-faced harp ground beetle |
|---|---|---|
| Kingdom same | Animalia (动物界) | Animalia (动物界) |
| Phylum | Chordata (脊索动物门) | Arthropoda (节肢动物门) |
| Class | Mammalia (哺乳動物) | Insecta (昆蟲綱) |
| Order | Carnivora (食肉目) | Coleoptera (鞘翅目) |
| Family | Ursidae (Bears) | Carabidae |
| Genus | Ursus (Bears) | Amara |
| Species | Ursus maritimus | Amara bifrons |
Evolutionary Relationship
Polar bear and Two-faced harp ground beetle share a common ancestor at the Kingdom level: Animalia. (动物界)
Conservation Status
Polar bear
VU — VulnerablePopulation: ~26.0K
Trend: Decreasing ↓
Two-faced harp ground beetle
NT — Near ThreatenedPhysical Characteristics
| Attribute | Polar bear | Two-faced harp ground beetle |
|---|---|---|
| Diet | Carnivore | — |
| Average Lifespan | 25 years | — |
| Average Length | 2.4 m | — |
| Average Weight | 450.0 kg | — |
Habitat & Geographic Range
Polar bear
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.
Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.
Two-faced harp ground beetle
Typically found in virtually all terrestrial and freshwater habitats.
Found across Europe (5 countries) and North America (Canada, United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.
Polar bear
北极熊是地球上最大的陆地食肉动物,体重可超过700千克,分布于从加拿大到俄罗斯的北极海冰区。是高度特化的海洋哺乳动物,依赖海冰捕猎环斑海豹和髯海豹。是优秀的游泳者,能够横渡广阔的开阔水域。被列为易危种,因气候变化导致北极海冰迅速减少,种群正受到严重威胁。
Two-faced harp ground beetle
No description available.
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