Hourglass Dolphin vs Little Tern

Lagenorhynchus cruciger compared with Sternula albifrons

Key Differences

• Hourglass Dolphin is Least Concern while Little Tern is Near Threatened.

Taxonomic Classification

Rank	Hourglass 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	Lagenorhynchus	Sternula
Species	Lagenorhynchus cruciger	Sternula albifrons

Evolutionary Relationship

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

Conservation Status

Hourglass Dolphin

LC — Least Concern

Little Tern

NT — Near Threatened

Physical Characteristics

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

Habitat & Geographic Range

Hourglass 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.