Irrawaddy dolphin vs Opal chimaera

Orcaella brevirostris compared with Chimaera opalescens

Key Differences

• Irrawaddy dolphin is Endangered while Opal chimaera is Least Concern.

Taxonomic Classification

Rank	Irrawaddy dolphin	Opal chimaera
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)	Holocephali (全頭亜綱)
Order	Cetacea (Whales & Dolphins)	Chimaeriformes (ギンザメ目)
Family	Delphinidae (Oceanic Dolphins)	Chimaeridae
Genus	Orcaella	Chimaera
Species	Orcaella brevirostris	Chimaera opalescens

Evolutionary Relationship

Irrawaddy dolphin and Opal chimaera share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Irrawaddy dolphin

EN — Endangered

Opal chimaera

LC — Least Concern

Physical Characteristics

Attribute	Irrawaddy dolphin	Opal chimaera
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Opal chimaera