Blainville’s Beaked Whale vs Common hammerhead

Mesoplodon densirostris compared with Sphyrna zygaena

Key Differences

• Blainville’s Beaked Whale is Data Deficient while Common hammerhead is Not Evaluated.

Taxonomic Classification

Rank	Blainville’s Beaked Whale	Common hammerhead
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Chondrichthyes (Cartilaginous Fish)
Order	Cetacea (Whales & Dolphins)	Carcharhiniformes (Ground Sharks)
Family	Hyperoodontidae	Sphyrnidae (Hammerhead Sharks)
Genus	Mesoplodon	Sphyrna (Hammerhead Sharks)
Species	Mesoplodon densirostris	Sphyrna zygaena

Evolutionary Relationship

Blainville’s Beaked Whale and Common hammerhead share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blainville’s Beaked Whale

DD — Data Deficient

Common hammerhead

NE — Not Evaluated

Physical Characteristics

Attribute	Blainville’s Beaked Whale	Common hammerhead
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blainville’s Beaked Whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, Portugal, Sweden, and Taiwan.

Common hammerhead

Habitat

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

Range

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

Blainville’s Beaked Whale

The Blainville’s Beaked Whale (Mesoplodon densirostris) is a species in the genus Mesoplodon. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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 3 countries:

🇵🇹 Portugal 🇸🇪 Sweden 🇹🇼 Taiwan