common bottlenose dolphin vs Amerika-aka-ei

Tursiops truncatus compared with Hypanus americanus

Key Differences

common bottlenose dolphin is Least Concern while Amerika-aka-ei is Near Threatened.

Taxonomic Classification

Rank	common bottlenose dolphin	Amerika-aka-ei
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Myliobatiformes (トビエイ目)
Family	Delphinidae (Oceanic Dolphins)	Dasyatidae
Genus	Tursiops (Bottlenose Dolphins)	Hypanus
Species	Tursiops truncatus	Hypanus americanus

Evolutionary Relationship

common bottlenose dolphin and Amerika-aka-ei share a common ancestor at the Phylum level: Chordata. (脊索動物)

表示 Phylum: Chordata

Conservation Status

common bottlenose dolphin

LC — Least Concern

Population: ~600.0K

Trend: Stable →

Amerika-aka-ei

NT — Near Threatened

Physical Characteristics

Attribute	common bottlenose dolphin	Amerika-aka-ei
Diet	Carnivore	—
Average Lifespan	45 years	—
Average Length	3.0 m	—
Average Weight	300.0 kg	—

Habitat & Geographic Range

common bottlenose dolphin

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).

Amerika-aka-ei

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

common bottlenose dolphin

最も研究され、最も知られているイルカ種であるバンドウイルカは、沿岸の浅瀬から外洋まで世界中の温暖な海域と温帯海域に生息します。体に対して大きな脳を持つ高度に知性的なこの種は、自己認識、複雑なコミュニケーション、社会的学習を示します。流動的な分裂融合社会で生活し、魚を追い込むために協力します。海洋生態系の健全性の重要な指標種です。