Common Cardinal vs Common Seahorse

Cardinalis cardinalis compared with Hippocampus kuda

Key Differences

Common Cardinal is Least Concern while Common Seahorse is Vulnerable.

Taxonomic Classification

Rank	Common Cardinal	Common Seahorse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Actinopterygii (Ray-finned Fish)
Order	Passeriformes (Songbirds)	Perciformes (Perch-like Fish)
Family	Cardinalidae	Pomacentridae (Clownfish & Damselfish)
Genus	Cardinalis	Amphiprion (Clownfish)
Species	Cardinalis cardinalis	Hippocampus kuda

Evolutionary Relationship

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

View Phylum: Chordata

Conservation Status

Common Cardinal

LC — Least Concern

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Common Cardinal

Habitat

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

Range

Widely distributed across Asia (United Arab Emirates), Europe (6 countries), and North America (United States).

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.

Common Cardinal

Common Cardinal (Cardinalis cardinalis) 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.