瓶鼻海豚 vs Common Green Darner

Tursiops truncatus compared with Anax junius

Taxonomic Classification

Rank	瓶鼻海豚	Common Green Darner
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Arthropoda (节肢动物门)
Class	Mammalia (哺乳動物)	Insecta (昆蟲綱)
Order	Cetacea (Whales & Dolphins)	Odonata (蜻蜓目)
Family	Delphinidae (Oceanic Dolphins)	Aeshnidae
Genus	Tursiops (Bottlenose Dolphins)	Anax
Species	Tursiops truncatus	Anax junius

Evolutionary Relationship

瓶鼻海豚 and Common Green Darner share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

瓶鼻海豚

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Common Green Darner

LC — Least Concern

Physical Characteristics

Attribute	瓶鼻海豚	Common Green Darner
Diet	Carnivore	—
Average Lifespan	45 years	—
Average Length	3.0 m	—
Average Weight	300.0 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).

Common Green Darner

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in United States.

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。

Common Green Darner

<em>Anax junius</em>, commonly known as the common green darner, is a large dragonfly belonging to the genus Anax within the family Aeshnidae. This species occupies virtually all terrestrial and freshwater habitats, and its range is centered on the United States, where it is one of the most recognizable and widespread dragonfly species. Common green darner is assessed as Least Concern on the IUCN Red List. The species is well known for undertaking long-distance migrations, with populations moving southward in autumn and northward in spring across North America. Adults are typically found near ponds, lakes, and slow-moving streams where females deposit eggs in aquatic vegetation. Biological traits of this species remain poorly documented in the scientific literature.