Yahazu-endo vs Polar bear
Vicia sativa compared with Ursus maritimus
Key Differences
- Yahazu-endo is Least Concern while Polar bear is Vulnerable.
Taxonomic Classification
| Rank | Yahazu-endo | Polar bear |
|---|---|---|
| Kingdom | Plantae (植物) | Animalia (動物) |
| Phylum | Magnoliophyta (被子植物門) | Chordata (脊索動物) |
| Class | Magnoliopsida (モクレン綱) | Mammalia (哺乳類) |
| Order | Fabales (マメ目) | Carnivora (ネコ目) |
| Family | Fabaceae | Ursidae (Bears) |
| Genus | Vicia | Ursus (Bears) |
| Species | Vicia sativa | Ursus maritimus |
Conservation Status
Yahazu-endo
LC — Least ConcernPolar bear
VU — VulnerablePopulation: ~26.0K
Trend: Decreasing ↓
Physical Characteristics
| Attribute | Yahazu-endo | Polar bear |
|---|---|---|
| Diet | — | Carnivore |
| Average Lifespan | — | 25 years |
| Average Length | — | 2.4 m |
| Average Weight | — | 450.0 kg |
Habitat & Geographic Range
Yahazu-endo
Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 4 distinct biome types within the Afrotropic biogeographic realm.
Widely distributed across Africa (6 countries), Asia (8 countries), Europe (24 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia, New Zealand), and South America (4 countries).
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.
Yahazu-endo
<em>Vicia sativa</em>, commonly known as common vetch or garden vetch, is an annual or biennial legume in the family Fabaceae native to the Mediterranean region and western Asia, now widely cultivated and naturalized across temperate regions worldwide. The species has been cultivated since ancient times as a fodder crop, green manure, and soil improver owing to its ability to fix atmospheric nitrogen through root nodule symbiosis with Rhizobium bacteria. <em>Vicia sativa</em> typically grows in arable fields, roadsides, disturbed ground, grasslands, and hedgerows, tolerating a wide range of soil types and climate conditions. The plant climbs by tendrils, reaching heights of 20 to 120 centimeters, and produces attractive pink-purple flowers followed by dark, hairy seed pods. Seeds contain significant protein content, making them valuable as livestock fodder, though raw seeds also contain toxic compounds that require proper preparation before human consumption. The diet of this species encompasses a wide ecological niche as a primary producer, supporting numerous herbivorous insects and other invertebrates. <em>Vicia sativa</em> is currently assessed as Least Concern by the IUCN, with populations widespread and stable globally. Its cultivation continues to expand in dryland farming and organic agricultural systems. Biological traits such as individual plant lifespan, weight, and precise measurements are variable and context-dependent across growing conditions.
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。
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