Hourglass Dolphin vs Peruvian Tern

Lagenorhynchus cruciger compared with Sternula lorata

Key Differences

• Hourglass Dolphin is Least Concern while Peruvian Tern is Endangered.

Taxonomic Classification

Rank	Hourglass Dolphin	Peruvian 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	Sternula
Species	Lagenorhynchus cruciger	Sternula lorata

Evolutionary Relationship

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

Conservation Status

Hourglass Dolphin

LC — Least Concern

Peruvian Tern

EN — Endangered

Physical Characteristics

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

Habitat & Geographic Range

Hourglass Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Peruvian Tern

Habitat

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

Range

Distributed across Ecuador and Norway. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.