Irrawaddy dolphin vs Sooty Tern

Orcaella brevirostris compared with Onychoprion fuscatus

Key Differences

• Irrawaddy dolphin is Endangered while Sooty Tern is Least Concern.

Taxonomic Classification

Rank	Irrawaddy dolphin	Sooty 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	Onychoprion
Species	Orcaella brevirostris	Onychoprion fuscatus

Evolutionary Relationship

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

Conservation Status

Irrawaddy dolphin

EN — Endangered

Sooty Tern

LC — Least Concern

Physical Characteristics

Attribute	Irrawaddy dolphin	Sooty Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Sooty Tern

Habitat

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

Range

Widely distributed across Europe (Denmark, Norway, Sweden), North America (United States), and South America (Colombia, Venezuela).