Irrawaddy dolphin vs Yellow-billed Tern

Orcaella brevirostris compared with Sternula superciliaris

Key Differences

• Irrawaddy dolphin is Endangered while Yellow-billed Tern is Least Concern.

Taxonomic Classification

Rank	Irrawaddy dolphin	Yellow-billed Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Charadriiformes (Charadriiformes)
Family	Delphinidae (Oceanic Dolphins)	Laridae
Genus	Orcaella	Sternula
Species	Orcaella brevirostris	Sternula superciliaris

Evolutionary Relationship

Irrawaddy dolphin and Yellow-billed Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Irrawaddy dolphin

EN — Endangered

Yellow-billed Tern

LC — Least Concern

Physical Characteristics

Attribute	Irrawaddy dolphin	Yellow-billed Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Yellow-billed Tern

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.