Atlantic Dolphin vs Common Seahorse

Delphinus delphis compared with Hippocampus kuda

Key Differences

• Atlantic Dolphin is Least Concern while Common Seahorse is Vulnerable.

Taxonomic Classification

Rank	Atlantic Dolphin	Common Seahorse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Actinopterygii (Ray-finned Fish)
Order	Cetacea (Whales & Dolphins)	Perciformes (Perch-like Fish)
Family	Delphinidae (Oceanic Dolphins)	Pomacentridae (Clownfish & Damselfish)
Genus	Delphinus	Amphiprion (Clownfish)
Species	Delphinus delphis	Hippocampus kuda

Evolutionary Relationship

Atlantic Dolphin and Common Seahorse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Atlantic Dolphin

LC — Least Concern

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Physical Characteristics

Attribute	Atlantic Dolphin	Common Seahorse
Diet	—	Carnivore
Average Lifespan	—	5 years
Average Length	—	17 cm
Average Weight	—	10 g

Habitat & Geographic Range

Atlantic Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and South America (Colombia, Ecuador, Venezuela).

Common Seahorse

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 7 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Australia, India, Indonesia, Japan, and Philippines. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Atlantic Dolphin

Atlantic Dolphin (Delphinus delphis) 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.

Common Seahorse

The common seahorse is found in tropical and temperate waters. Males carry and deliver the babies.