Irrawaddy dolphin vs Polynesian Triller

Orcaella brevirostris compared with Lalage maculosa

Key Differences

• Irrawaddy dolphin is Endangered while Polynesian Triller is Least Concern.

Taxonomic Classification

Rank	Irrawaddy dolphin	Polynesian Triller
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Passeriformes (Songbirds)
Family	Delphinidae (Oceanic Dolphins)	Campephagidae
Genus	Orcaella	Lalage
Species	Orcaella brevirostris	Lalage maculosa

Evolutionary Relationship

Irrawaddy dolphin and Polynesian Triller share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Irrawaddy dolphin

EN — Endangered

Polynesian Triller

LC — Least Concern

Physical Characteristics

Attribute	Irrawaddy dolphin	Polynesian Triller
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Polynesian Triller

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.