Irrawaddy dolphin vs Lesser Akialoa

Orcaella brevirostris compared with Akialoa obscura

Key Differences

• Irrawaddy dolphin is Endangered while Lesser Akialoa is Extinct.

Taxonomic Classification

Rank	Irrawaddy dolphin	Lesser Akialoa
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)	Fringillidae
Genus	Orcaella	Akialoa
Species	Orcaella brevirostris	Akialoa obscura

Evolutionary Relationship

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

Conservation Status

Irrawaddy dolphin

EN — Endangered

Lesser Akialoa

EX — Extinct

Physical Characteristics

Attribute	Irrawaddy dolphin	Lesser Akialoa
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Lesser Akialoa

Habitat

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

Range

Found in Norway.