Elegant Tern vs Pacific white-sided dolphin

Thalasseus elegans compared with Lagenorhynchus obliquidens

Key Differences

• Elegant Tern is Near Threatened while Pacific white-sided dolphin is Least Concern.

Taxonomic Classification

Rank	Elegant Tern	Pacific white-sided dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Charadriiformes (Charadriiformes)	Cetacea (Whales & Dolphins)
Family	Laridae	Delphinidae (Oceanic Dolphins)
Genus	Thalasseus	Lagenorhynchus
Species	Thalasseus elegans	Lagenorhynchus obliquidens

Evolutionary Relationship

Elegant Tern and Pacific white-sided dolphin share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Elegant Tern

NT — Near Threatened

Pacific white-sided dolphin

LC — Least Concern

Physical Characteristics

Attribute	Elegant Tern	Pacific white-sided dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Elegant Tern

Habitat

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

Range

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

Pacific white-sided dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.