Common Seahorse vs Scarlet Macaw

Hippocampus kuda compared with Ara macao

Key Differences

• Common Seahorse is Vulnerable while Scarlet Macaw is Least Concern.
• Common Seahorse is carnivore while Scarlet Macaw is herbivore.
• Scarlet Macaw is 100.0x heavier than Common Seahorse.
• Scarlet Macaw lives longer (50 years vs 5 years).

Taxonomic Classification

Rank	Common Seahorse	Scarlet Macaw
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Actinopterygii (Ray-finned Fish)	Aves (Birds)
Order	Perciformes (Perch-like Fish)	Psittaciformes (Parrots)
Family	Pomacentridae (Clownfish & Damselfish)	Psittacidae (True Parrots)
Genus	Amphiprion (Clownfish)	Ara (Macaws)
Species	Hippocampus kuda	Ara macao

Evolutionary Relationship

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

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Scarlet Macaw

LC — Least Concern

Population: ~50.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Seahorse	Scarlet Macaw
Diet	Carnivore	Herbivore
Average Lifespan	5 years	50 years
Average Length	17 cm	85 cm
Average Weight	10 g	1.0 kg

Habitat & Geographic Range

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.

Scarlet Macaw

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found across Europe (5 countries) and South America (Colombia, Ecuador, Venezuela). Population trends indicate a declining trajectory in parts of its range.

Common Seahorse

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

Scarlet Macaw

One of the most brilliantly colored birds in the Americas, scarlet macaws display vivid red, yellow, and blue plumage with wingspans reaching 1 meter. Found in humid lowland forests from Mexico to Bolivia, they are highly intelligent, long-lived — up to 75 years — and form lifelong pair bonds. They travel long distances to clay licks where they consume mineral-rich soil to detoxify seeds. Listed as Least Concern but locally threatened by habitat loss and the pet trade.