Common Panicgrass vs Polar bear

Panicum capillare compared with Ursus maritimus

Key Differences

Common Panicgrass is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Common Panicgrass	Polar bear
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Chordata (脊索動物)
Class	Liliopsida (単子葉植物綱)	Mammalia (哺乳類)
Order	Poales (イネ目)	Carnivora (ネコ目)
Family	Poaceae (Grass Family)	Ursidae (Bears)
Genus	Panicum	Ursus (Bears)
Species	Panicum capillare	Ursus maritimus

Conservation Status

Common Panicgrass

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Common Panicgrass

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Widely distributed across Africa (Morocco), Asia (6 countries), Europe (33 countries), North America (Canada, United States), Oceania and the Pacific (Australia), and South America (Brazil, Chile).

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.

Common Panicgrass

<em>Panicum capillare</em> is an annual grass in the family Poaceae, native to North America and now broadly naturalized across Europe, Asia, Africa, Oceania, and South America. It is recorded in Morocco, six Asian countries, thirty-three European nations, Canada, the United States, Australia, Brazil, and Chile. The species typically colonizes disturbed habitats including roadsides, agricultural fields, riverbanks, waste ground, and sandy or rocky substrates with sparse vegetation. It produces an open, highly branched panicle inflorescence that detaches at maturity and disperses as a tumbleweed, facilitating long-distance seed dispersal. This adaptation contributes to its success as a colonizer of novel environments. Conservation status has not been formally evaluated by the IUCN, consistent with its status as a widespread, common, and often weedy annual species. Biological traits including average lifespan, body measurements, and detailed dietary ecology remain poorly documented in standardized ecological databases for this annual grass species. <em>Panicum capillare</em> plays a role in ruderal plant communities, providing food for granivorous birds and insects, though it is also considered an agricultural weed in crop systems across parts of its introduced range.

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。