Common Seahorse vs Koala

Hippocampus kuda compared with Phascolarctos cinereus

Key Differences

• Common Seahorse is carnivore while Koala is herbivore.
• Koala is 1000.0x heavier than Common Seahorse.
• Koala lives longer (15 years vs 5 years).

Taxonomic Classification

Rank	Common Seahorse	Koala
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class	Actinopterygii (Ray-finned Fish)	Mammalia (Säugetiere)
Order	Perciformes (Barschartige)	Diprotodontia (Marsupials)
Family	Pomacentridae (Clownfish & Damselfish)	Phascolarctidae (Koalas)
Genus	Amphiprion (Clownfish)	Phascolarctos (Koalas)
Species	Hippocampus kuda	Phascolarctos cinereus

Evolutionary Relationship

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

Conservation Status

Common Seahorse

VU — Vulnerable

Trend: Decreasing ↓

Koala

VU — Vulnerable

Population: ~100.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Common Seahorse	Koala
Diet	Carnivore	Herbivore
Average Lifespan	5 years	15 years
Average Length	17 cm	75 cm
Average Weight	10 g	10.0 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.

Koala

Habitat

Typically found in grasslands, forests, and vegetated habitats.

Range

Found in Australia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Seahorse

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

Koala

Iconic marsupial of eastern and southeastern Australia, koalas weigh up to 15 kg and spend up to 22 hours daily sleeping to conserve energy from their low-calorie eucalyptus leaf diet. Highly specialized to process toxic eucalyptus compounds that would kill most other mammals, they have gut microbiomes uniquely adapted for detoxification. Listed as Endangered in 2022, with populations decimated by chlamydia disease, habitat clearing, and climate change.

Shared Countries

Both species can be found in 1 countries:

🇦🇺 Australia