Irrawaddy dolphin vs undulate ray

Orcaella brevirostris compared with Raja undulata

Taxonomic Classification

Rank	Irrawaddy dolphin	undulate ray
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)	Rajiformes (Bộ Cá đuối)
Family	Delphinidae (Oceanic Dolphins)	Rajidae
Genus	Orcaella	Raja
Species	Orcaella brevirostris	Raja undulata

Evolutionary Relationship

Irrawaddy dolphin and undulate ray share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Irrawaddy dolphin

EN — Endangered

undulate ray

EN — Endangered

Physical Characteristics

Attribute	Irrawaddy dolphin	undulate ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

undulate ray

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Belgium. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.