ワシミミズク vs Polar bear

Bubo bubo compared with Ursus maritimus

Key Differences

ワシミミズク is Endangered while Polar bear is Vulnerable.
Polar bear is 150.0x heavier than ワシミミズク.
Polar bear lives longer (25 years vs 20 years).

Taxonomic Classification

Rank	ワシミミズク	Polar bear
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Aves (鳥類)	Mammalia (哺乳類)
Order	Strigiformes (フクロウ目)	Carnivora (ネコ目)
Family	Strigidae (True Owls)	Ursidae (Bears)
Genus	Bubo (Eagle Owls)	Ursus (Bears)
Species	Bubo bubo	Ursus maritimus

Evolutionary Relationship

ワシミミズク and Polar bear share a common ancestor at the Phylum level: Chordata. (脊索動物)

表示 Phylum: Chordata

Conservation Status

ワシミミズク

EN — Endangered

Population: ~400.0K

Trend: Stable →

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	ワシミミズク	Polar bear
Diet	Carnivore	Carnivore
Average Lifespan	20 years	25 years
Average Length	70 cm	2.4 m
Average Weight	3.0 kg	450.0 kg

Habitat & Geographic Range

ワシミミズク

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Found across Europe (9 countries) and South America (Ecuador). 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.

ワシミミズク

世界最大のフクロウ種であるワシミミズク（Bubo bubo）は翼開長最大1.9メートルに達し、ヨーロッパからアジアを経て中国にかけての岩石地帯、林縁、断崖に生息します。強力な爪を持つ静かな夜行性ハンターで、ウサギ、野ウサギ、キツネ、さらには他の猛禽類も獲物にします。深みのある響き渡る鳴き声は遠くまで届きます。歴史的に迫害されてきましたが、個体群は比較的安定しています。

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。