brown bear vs 瓶鼻海豚

Ursus arctos compared with Tursiops truncatus

Key Differences

• brown bear is Extinct while 瓶鼻海豚 is Least Concern.
• brown bear is omnivore while 瓶鼻海豚 is carnivore.
• 瓶鼻海豚 lives longer (45 years vs 25 years).

Taxonomic Classification

Rank	brown bear	瓶鼻海豚
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Carnivora (食肉目)	Cetacea (Whales & Dolphins)
Family	Ursidae (Bears)	Delphinidae (Oceanic Dolphins)
Genus	Ursus (Bears)	Tursiops (Bottlenose Dolphins)
Species	Ursus arctos	Tursiops truncatus

Evolutionary Relationship

brown bear and 瓶鼻海豚 share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

brown bear

EX — Extinct

Population: ~200.0K

Trend: Stable →

瓶鼻海豚

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Physical Characteristics

Attribute	brown bear	瓶鼻海豚
Diet	Omnivore	Carnivore
Average Lifespan	25 years	45 years
Average Length	2.0 m	3.0 m
Average Weight	300.0 kg	300.0 kg

Habitat & Geographic Range

brown bear

Habitat

Typically found in a wide range of habitat types.

Range

Found across Europe (6 countries).

瓶鼻海豚

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 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

brown bear

棕熊是世界上分布最广泛的熊类物种，从北美和欧洲横跨俄罗斯至日本，占据森林、冻原和高山草甸。阿拉斯加沿海种群的成年个体体重可达700公斤。棕熊是杂食性动物，以浆果、根茎、鱼类和腐肉为食，是跨景观分配养分的关键物种。大多数种群稳定，但部分亚种受到威胁。

瓶鼻海豚

作为研究最广泛、最受认可的海豚物种，宽吻海豚栖息于全球从沿岸浅水到远洋的温暖和温带海域。高度智能，大脑相对体型较大，展示自我认知、复杂交流和社会学习。生活在流动的分裂-融合社会中，合作围捕鱼群。是海洋生态系统健康的关键指示物种。

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden 🇺🇦 Ukraine