Jinbeizame vs Polar bear

Rhincodon typus compared with Ursus maritimus

Key Differences

Jinbeizame is Endangered while Polar bear is Vulnerable.
Jinbeizame is omnivore while Polar bear is carnivore.
Jinbeizame is 44.4x heavier than Polar bear.
Jinbeizame lives longer (100 years vs 25 years).

Taxonomic Classification

Rank	Jinbeizame	Polar bear
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Chondrichthyes (軟骨魚綱)	Mammalia (哺乳類)
Order	Lamniformes (ネズミザメ目)	Carnivora (ネコ目)
Family	Rhincodontidae (Whale Sharks)	Ursidae (Bears)
Genus	Rhincodon (Whale Sharks)	Ursus (Bears)
Species	Rhincodon typus	Ursus maritimus

Evolutionary Relationship

Jinbeizame and Polar bear share a common ancestor at the Phylum level: Chordata. (脊索動物)

表示 Phylum: Chordata

Conservation Status

Jinbeizame

EN — Endangered

Trend: Decreasing ↓

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Jinbeizame	Polar bear
Diet	Omnivore	Carnivore
Average Lifespan	100 years	25 years
Average Length	12.0 m	2.4 m
Average Weight	20.0 t	450.0 kg

Habitat & Geographic Range

Jinbeizame

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Chile, Portugal, Taiwan, and Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Jinbeizame

ジンベエザメ（Rhincodon typus）は世界最大の魚類で、体長12メートル、体重20トンを超えることがあり、世界の熱帯・温暖な温帯海洋に生息します。その巨大な体にもかかわらず、プランクトン、魚卵、小魚を口を大きく開けて泳ぎながら濾過摂食する無害な種です。プランクトンの大発生を追って大規模な季節的回遊を行います。乱獲、船の衝突、フカヒレ取引により、過去75年間で個体数が約50%減少し、絶滅危惧種に指定されています。

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。