Blue Dolphin vs Smalltooth stingray

Stenella coeruleoalba compared with Hypanus rudis

Key Differences

• Blue Dolphin is Least Concern while Smalltooth stingray is Critically Endangered.

Taxonomic Classification

Rank	Blue Dolphin	Smalltooth stingray
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Mammalia (lớp Thú)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Myliobatiformes (Bộ Cá đuối ó)
Family	Delphinidae (Oceanic Dolphins)	Dasyatidae
Genus	Stenella	Hypanus
Species	Stenella coeruleoalba	Hypanus rudis

Evolutionary Relationship

Blue Dolphin and Smalltooth stingray share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Blue Dolphin

LC — Least Concern

Smalltooth stingray

CR — Critically Endangered

Physical Characteristics

Attribute	Blue Dolphin	Smalltooth stingray
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).

Smalltooth stingray

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.