Irrawaddy dolphin vs Spinner Dolphin

Orcaella brevirostris compared with Stenella longirostris

Key Differences

• Irrawaddy dolphin is Endangered while Spinner Dolphin is Data Deficient.

Taxonomic Classification

Rank	Irrawaddy dolphin	Spinner Dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Cetacea (Whales & Dolphins)	Cetacea (Whales & Dolphins)
Family same	Delphinidae (Oceanic Dolphins)	Delphinidae (Oceanic Dolphins)
Genus	Orcaella	Stenella
Species	Orcaella brevirostris	Stenella longirostris

Evolutionary Relationship

Irrawaddy dolphin and Spinner Dolphin share a common ancestor at the Family level: Delphinidae. (Oceanic Dolphins)

Conservation Status

Irrawaddy dolphin

EN — Endangered

Spinner Dolphin

DD — Data Deficient

Physical Characteristics

Attribute	Irrawaddy dolphin	Spinner Dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Spinner Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, Norway, Taiwan, and Venezuela.