jaguar vs Polar bear

Panthera onca compared with Ursus maritimus

Key Differences

jaguar is Near Threatened while Polar bear is Vulnerable.
Polar bear is 4.5x heavier than jaguar.
Polar bear lives longer (25 years vs 15 years).

Taxonomic Classification

Rank	jaguar	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 same	Carnivora (ネコ目)	Carnivora (ネコ目)
Family	Felidae (Cats)	Ursidae (Bears)
Genus	Panthera (Big Cats)	Ursus (Bears)
Species	Panthera onca	Ursus maritimus

Evolutionary Relationship

jaguar and Polar bear share a common ancestor at the Order level: Carnivora. (ネコ目)

表示 Order: Carnivora

Conservation Status

jaguar

NT — Near Threatened

Population: ~64.0K

Trend: Decreasing ↓

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	jaguar	Polar bear
Diet	Carnivore	Carnivore
Average Lifespan	15 years	25 years
Average Length	1.9 m	2.4 m
Average Weight	100.0 kg	450.0 kg

Habitat & Geographic Range

jaguar

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia, Ecuador, and Venezuela. 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.

jaguar

アメリカ大陸最大のネコ科動物で、体重は最大100kgに達し、がっしりとした筋肉質の体型と特有のロゼット模様の毛皮を持つ。メキシコから南アメリカにかけて分布し、アマゾンやパンタナルが主要生息地となる。優れた水泳能力を持つ頂点捕食者であり、獲物個体数の調節に重要な役割を担う。森林破壊により生息域が縮小し、準絶滅危惧に分類されている。

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。