Blue Dolphin vs Dusky Dolphin

Stenella coeruleoalba compared with Lagenorhynchus obscurus

Taxonomic Classification

Rank	Blue Dolphin	Dusky Dolphin
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order same	Cetacea (Whales & Dolphins)	Cetacea (Whales & Dolphins)
Family same	Delphinidae (Oceanic Dolphins)	Delphinidae (Oceanic Dolphins)
Genus	Stenella	Lagenorhynchus
Species	Stenella coeruleoalba	Lagenorhynchus obscurus

Evolutionary Relationship

Blue Dolphin and Dusky Dolphin share a common ancestor at the Family level: Delphinidae. (Oceanic Dolphins)

Conservation Status

Blue Dolphin

LC — Least Concern

Dusky Dolphin

LC — Least Concern

Physical Characteristics

Attribute	Blue Dolphin	Dusky Dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela).

Dusky Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Blue Dolphin

Blue Dolphin (Stenella coeruleoalba) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.