Hourglass Dolphin vs Royal Tern

Lagenorhynchus cruciger compared with Thalasseus maximus

Taxonomic Classification

Rank	Hourglass Dolphin	Royal 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	Lagenorhynchus	Thalasseus
Species	Lagenorhynchus cruciger	Thalasseus maximus

Evolutionary Relationship

Hourglass Dolphin and Royal Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Hourglass Dolphin

LC — Least Concern

Royal Tern

LC — Least Concern

Physical Characteristics

Attribute	Hourglass Dolphin	Royal Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hourglass Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Royal Tern

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, Sweden, and Venezuela.

Royal Tern

Royal Tern (Thalasseus maximus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.