Blue Dolphin vs Perrin’s Beaked Whale

Stenella coeruleoalba compared with Mesoplodon perrini

Key Differences

• Blue Dolphin is Least Concern while Perrin’s Beaked Whale is Endangered.

Taxonomic Classification

Rank	Blue Dolphin	Perrin’s Beaked Whale
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	Delphinidae (Oceanic Dolphins)	Hyperoodontidae
Genus	Stenella	Mesoplodon
Species	Stenella coeruleoalba	Mesoplodon perrini

Evolutionary Relationship

Blue Dolphin and Perrin’s Beaked Whale share a common ancestor at the Order level: Cetacea. (Whales & Dolphins)

Conservation Status

Blue Dolphin

LC — Least Concern

Perrin’s Beaked Whale

EN — Endangered

Physical Characteristics

Attribute	Blue Dolphin	Perrin’s Beaked Whale
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).

Perrin’s Beaked Whale

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.