Irrawaddy dolphin vs Little Tern

Orcaella brevirostris compared with Sternula albifrons

Key Differences

• Irrawaddy dolphin is Endangered while Little Tern is Near Threatened.

Taxonomic Classification

Rank	Irrawaddy dolphin	Little 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 albifrons

Evolutionary Relationship

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

Conservation Status

Irrawaddy dolphin

EN — Endangered

Little Tern

NT — Near Threatened

Physical Characteristics

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

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Little Tern

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.