Irrawaddy dolphin vs Lesser Greenlet

Orcaella brevirostris compared with Hylophilus decurtatus

Key Differences

• Irrawaddy dolphin is Endangered while Lesser Greenlet is Least Concern.

Taxonomic Classification

Rank	Irrawaddy dolphin	Lesser Greenlet
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)	Vireonidae
Genus	Orcaella	Hylophilus
Species	Orcaella brevirostris	Hylophilus decurtatus

Evolutionary Relationship

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

Conservation Status

Irrawaddy dolphin

EN — Endangered

Lesser Greenlet

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Lesser Greenlet

Habitat

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

Range

Found in Colombia.