Bonnet hammerhead vs Cá Nhám búa không rãnh

Sphyrna tiburo compared with Sphyrna mokarran

Key Differences

• Bonnet hammerhead is Endangered while Cá Nhám búa không rãnh is Critically Endangered.

Taxonomic Classification

Rank	Bonnet hammerhead	Cá Nhám búa không rãnh
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Chondrichthyes (Lớp Cá sụn)	Chondrichthyes (Lớp Cá sụn)
Order same	Carcharhiniformes (Bộ Cá mập mắt trắng)	Carcharhiniformes (Bộ Cá mập mắt trắng)
Family same	Sphyrnidae (Hammerhead Sharks)	Sphyrnidae (Hammerhead Sharks)
Genus same	Sphyrna (Hammerhead Sharks)	Sphyrna (Hammerhead Sharks)
Species	Sphyrna tiburo	Sphyrna mokarran

Evolutionary Relationship

Bonnet hammerhead and Cá Nhám búa không rãnh share a common ancestor at the Genus level: Sphyrna. (Hammerhead Sharks)

Conservation Status

Bonnet hammerhead

EN — Endangered

Cá Nhám búa không rãnh

CR — Critically Endangered

Trend: Decreasing ↓

Physical Characteristics

Attribute	Bonnet hammerhead	Cá Nhám búa không rãnh
Diet	—	Carnivore
Average Lifespan	—	40 years
Average Length	—	5.0 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Bonnet hammerhead

Habitat

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

Cá Nhám búa không rãnh

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 5 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 Colombia, Taiwan, and Venezuela. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Bonnet hammerhead

The Bonnet hammerhead (Sphyrna tiburo) is a species in the genus Sphyrna. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Cá Nhám búa không rãnh

The largest hammerhead shark species, great hammerheads reach up to 6 meters and are found in tropical and subtropical coastal waters worldwide. Their distinctive T-shaped head (cephalofoil) dramatically increases sensory surface area for electroreception, enabling them to detect buried stingrays through sand with exceptional precision — stingrays are a preferred prey. Critically Endangered, with populations declining dramatically due to highly valued fins and bycatch mortality.