elk vs Polar bear

Cervus elaphus compared with Ursus maritimus

Key Differences

elk is herbivore while Polar bear is carnivore.
Polar bear is 1.9x heavier than elk.
Polar bear lives longer (25 years vs 20 years).

Taxonomic Classification

Rank	elk	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	Artiodactyla (偶蹄目)	Carnivora (ネコ目)
Family	Cervidae (Deer)	Ursidae (Bears)
Genus	Cervus (True Deer)	Ursus (Bears)
Species	Cervus elaphus	Ursus maritimus

Evolutionary Relationship

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

表示 Class: Mammalia

Conservation Status

elk

VU — Vulnerable

Trend: Stable →

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	elk	Polar bear
Diet	Herbivore	Carnivore
Average Lifespan	20 years	25 years
Average Length	2.1 m	2.4 m
Average Weight	240.0 kg	450.0 kg

Habitat & Geographic Range

elk

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and temperate broadleaf and mixed forests, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (Afghanistan, Indonesia), Europe (11 countries), North America (Mexico), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina, Chile, Peru). Currently classified as Vulnerable 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.

elk

アカシカとも呼ばれるエルク（Cervus elaphus）は、枝角を持つ雄が最大240kgに達するシカ科最大種の一つです。ヨーロッパ、アジア、北アメリカの温帯林や草原に分布し、歴史的には個体群が別の亜種として区別されていました。雄は毎年枝角を落として再生させ、秋の繁殖期には激しい鳴き声競争を繰り広げます。分布域全体にわたって重要なジビエ動物であり、保全対象種です。

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。