Blue Dolphin vs Lesser bilby

Stenella coeruleoalba compared with Macrotis leucura

Key Differences

• Blue Dolphin is Least Concern while Lesser bilby is Extinct.

Taxonomic Classification

Rank	Blue Dolphin	Lesser bilby
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Cetacea (Whales & Dolphins)	Peramelemorphia (Peramelemorphia)
Family	Delphinidae (Oceanic Dolphins)	Thylacomyidae
Genus	Stenella	Macrotis
Species	Stenella coeruleoalba	Macrotis leucura

Evolutionary Relationship

Blue Dolphin and Lesser bilby share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Blue Dolphin

LC — Least Concern

Lesser bilby

EX — Extinct

Physical Characteristics

Attribute	Blue Dolphin	Lesser bilby
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).

Lesser bilby

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.