plains zebra vs Polar bear

Equus quagga compared with Ursus maritimus

Key Differences

• plains zebra is Near Threatened while Polar bear is Vulnerable.
• plains zebra is herbivore while Polar bear is carnivore.

Taxonomic Classification

Rank	plains zebra	Polar bear
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Perissodactyla (奇蹄目)	Carnivora (ネコ目)
Family	Equidae (Horses & Zebras)	Ursidae (Bears)
Genus	Equus (Horses & Zebras)	Ursus (Bears)
Species	Equus quagga	Ursus maritimus

Evolutionary Relationship

plains zebra and Polar bear share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

plains zebra

NT — Near Threatened

Population: ~750.0K

Trend: Decreasing ↓

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	plains zebra	Polar bear
Diet	Herbivore	Carnivore
Average Lifespan	25 years	25 years
Average Length	2.3 m	2.4 m
Average Weight	350.0 kg	450.0 kg

Habitat & Geographic Range

plains zebra

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Botswana, Ethiopia, Kenya, South Africa, and Tanzania. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

plains zebra

最も個体数の多い野生の馬科動物であるサバンナシマウマ（Equus quagga）は、東アフリカと南アフリカの草原およびサバンナに小さな家族グループから大規模な集団まで様々な形で生息する。個体ごとに独特の白黒の縞模様は、捕食者を混乱させ、吸血昆虫を防ぎ、個体識別を助けると考えられている。シマウマはライオン、ハイエナ、ワニの主要な餌となり、サバンナの食物網を支える。

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。