瓶鼻海豚 vs Leatherback Sea Turtle

Tursiops truncatus compared with Dermochelys coriacea

Key Differences

• 瓶鼻海豚 is Least Concern while Leatherback Sea Turtle is Vulnerable.
• Leatherback Sea Turtle is 1.7x heavier than 瓶鼻海豚.
• Leatherback Sea Turtle lives longer (50 years vs 45 years).

Taxonomic Classification

Rank	瓶鼻海豚	Leatherback Sea Turtle
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	Mammalia (哺乳動物)	Reptilia (爬行纲)
Order	Cetacea (Whales & Dolphins)	Testudines (龟鳖目)
Family	Delphinidae (Oceanic Dolphins)	Cheloniidae (Sea Turtles)
Genus	Tursiops (Bottlenose Dolphins)	Chelonia (Green Sea Turtles)
Species	Tursiops truncatus	Dermochelys coriacea

Evolutionary Relationship

瓶鼻海豚 and Leatherback Sea Turtle share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

瓶鼻海豚

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Leatherback Sea Turtle

VU — Vulnerable

Population: ~35.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	瓶鼻海豚	Leatherback Sea Turtle
Diet	Carnivore	Carnivore
Average Lifespan	45 years	50 years
Average Length	3.0 m	2.0 m
Average Weight	300.0 kg	500.0 kg

Habitat & Geographic Range

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).

Leatherback Sea Turtle

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 5 distinct biome types spanning the Australasia and Indomalayan and Neotropic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Costa Rica, Indonesia, Malaysia, and Trinidad and Tobago. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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。

Leatherback Sea Turtle

棱皮龟是现存最大的龟类，也是第四重的爬行动物。与其他龟类不同，它没有坚硬的甲壳，而是覆有柔软的皮革状皮肤。