Bronze hammerhead shark vs Common hammerhead

Sphyrna lewini compared with Sphyrna zygaena

Key Differences

• Bronze hammerhead shark is Critically Endangered while Common hammerhead is Not Evaluated.

Taxonomic Classification

Rank	Bronze hammerhead shark	Common hammerhead
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Chondrichthyes (Cartilaginous Fish)	Chondrichthyes (Cartilaginous Fish)
Order same	Carcharhiniformes (Ground Sharks)	Carcharhiniformes (Ground Sharks)
Family same	Sphyrnidae (Hammerhead Sharks)	Sphyrnidae (Hammerhead Sharks)
Genus same	Sphyrna (Hammerhead Sharks)	Sphyrna (Hammerhead Sharks)
Species	Sphyrna lewini	Sphyrna zygaena

Evolutionary Relationship

Bronze hammerhead shark and Common hammerhead share a common ancestor at the Genus level: Sphyrna. (Hammerhead Sharks)

Conservation Status

Bronze hammerhead shark

CR — Critically Endangered

Common hammerhead

NE — Not Evaluated

Physical Characteristics

Attribute	Bronze hammerhead shark	Common hammerhead
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bronze hammerhead shark

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and temperate broadleaf and mixed forests, among 9 distinct biome types spanning the Indomalayan and Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Chile, Colombia, Taiwan, and Venezuela. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common hammerhead

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Chile, Denmark, Portugal, Sweden, and Taiwan.

Bronze hammerhead shark

The Bronze Hammerhead Shark (Sphyrna lewini) is a species in the genus Sphyrna. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and temperate broadleaf and mixed forests, among 9 distinct biome types spanning the Indomalayan

Common hammerhead

The common hammerhead, <em>Sphyrna zygaena</em>, is a cartilaginous fish belonging to the order Carcharhiniformes, family Sphyrnidae. This species is typically found in marine environments and has a distribution that includes the waters of Chile, Denmark, Portugal, Sweden, and Taiwan, reflecting a wide range across both Atlantic and Pacific Ocean systems. As a hammerhead shark, <em>Sphyrna zygaena</em> possesses the characteristic cephalofoil, the laterally expanded head structure that provides enhanced sensory capabilities and hydrodynamic benefits. Hammerhead sharks are generally known to be active, wide-ranging predators within marine ecosystems. No dietary information has been provided for this specific species in current records. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 2 countries:

🇨🇱 Chile 🇹🇼 Taiwan