Irrawaddy dolphin vs Longheaded eagle ray

Orcaella brevirostris compared with Aetobatus ocellatus

Key Differences

• Irrawaddy dolphin is Endangered while Longheaded eagle ray is Vulnerable.

Taxonomic Classification

Rank	Irrawaddy dolphin	Longheaded eagle ray
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Elasmobranchii
Order	Cetacea (Whales & Dolphins)	Myliobatiformes (トビエイ目)
Family	Delphinidae (Oceanic Dolphins)	Myliobatidae
Genus	Orcaella	Aetobatus
Species	Orcaella brevirostris	Aetobatus ocellatus

Evolutionary Relationship

Irrawaddy dolphin and Longheaded eagle ray share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Irrawaddy dolphin

EN — Endangered

Longheaded eagle ray

VU — Vulnerable

Physical Characteristics

Attribute	Irrawaddy dolphin	Longheaded eagle ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Longheaded eagle ray

Habitat

Native to Asia and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Chile and Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.