Gray-backed Tern vs Indo-Pacific Bottlenose Dolphin

Onychoprion lunatus compared with Tursiops aduncus

Key Differences

• Gray-backed Tern is Least Concern while Indo-Pacific Bottlenose Dolphin is Near Threatened.

Taxonomic Classification

Rank	Gray-backed Tern	Indo-Pacific Bottlenose 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	Onychoprion	Tursiops (Bottlenose Dolphins)
Species	Onychoprion lunatus	Tursiops aduncus

Evolutionary Relationship

Gray-backed Tern and Indo-Pacific Bottlenose Dolphin share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-backed Tern

LC — Least Concern

Indo-Pacific Bottlenose Dolphin

NT — Near Threatened

Physical Characteristics

Attribute	Gray-backed Tern	Indo-Pacific Bottlenose Dolphin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-backed Tern

Habitat

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

Range

Found in Norway.

Indo-Pacific Bottlenose Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Taiwan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.