vs Polar bear
Chaetoceros minimus compared with Ursus maritimus
Key Differences
- is Not Evaluated while Polar bear is Vulnerable.
Taxonomic Classification
| Rank | Polar bear | |
|---|---|---|
| Kingdom | Chromista (クロミスタ) | Animalia (動物) |
| Phylum | Ochrophyta (オクロ植物) | Chordata (脊索動物) |
| Class | Bacillariophyceae (クサリケイソウ綱) | Mammalia (哺乳類) |
| Order | Chaetocerotales (Chaetocerotales) | Carnivora (ネコ目) |
| Family | Chaetocerotaceae | Ursidae (Bears) |
| Genus | Chaetoceros | Ursus (Bears) |
| Species | Chaetoceros minimus | Ursus maritimus |
Conservation Status
Polar bear
VU — VulnerablePopulation: ~26.0K
Trend: Decreasing ↓
Physical Characteristics
| Attribute | Polar bear | |
|---|---|---|
| Diet | — | Carnivore |
| Average Lifespan | — | 25 years |
| Average Length | — | 2.4 m |
| Average Weight | — | 450.0 kg |
Habitat & Geographic Range
Native to Europe, inhabiting ecosystems characteristic of the region.
Distributed across Denmark, Norway, and Sweden.
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.
Chaetoceros minimusはChaetocerota科の小型海産浮遊珪藻類で、各細胞の角から伸びる長い剛毛が特徴だ。属内で最も小さい種の一つで、沿岸および外洋水域に広く分布し海洋一次生産に大きく貢献する。他の糸状突起珪藻類と同様に鎖状群体を形成でき、海底への炭素輸出に重要な役割を果たす。
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。
Related Comparisons
Nature FYI Family
Explore more of the natural world across our sister sites.
Part of the Nature FYI family — FYIPedia