vs Polar bear
Physarum pusillum compared with Ursus maritimus
Key Differences
- is Not Evaluated while Polar bear is Vulnerable.
Taxonomic Classification
| Rank | Polar bear | |
|---|---|---|
| Kingdom | Protozoa (原生動物) | Animalia (動物) |
| Phylum | Mycetozoa | Chordata (脊索動物) |
| Class | Myxomycetes (変形菌綱) | Mammalia (哺乳類) |
| Order | Physarales (モジホコリ目) | Carnivora (ネコ目) |
| Family | Physaraceae | Ursidae (Bears) |
| Genus | Physarum | Ursus (Bears) |
| Species | Physarum pusillum | 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 Asia and Europe and North America, inhabiting ecosystems characteristic of the region.
Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Brazil).
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.
Physarum pusillum は湿潤な林内環境の腐朽植物素材や樹皮に小さく淡色の胞子嚢を形成する小型変形菌類である。その名前は他の Physarum 種に比べた小型の体を反映する。仲間と同様に、生殖構造を形成する前に基質上を這い回って食物粒子を取り込む多核原形質段階を経て、複数の大陸に分布する。
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