The bonnethead (Sphyrna tiburo), also called a bonnet shark or shovelhead, is a small member of the hammerhead shark genus Sphyrna, and part of the family Sphyrnidae. It is an … See more

Using data from mtDNA analysis, a scientist has found that the evolution of hammerhead sharks probably began with a taxon that had a … See more

Behavior
The bonnethead shark is an active tropical shark that swims in small groups of five to 15 individuals, … See more

• Sharks portal
• "Sphyrna tiburo". Integrated Taxonomic Information System. Retrieved 23 January 2006.
• Species Description of Sphyrna tiburo at www.shark-references.com See more

The shark is characterized by a broad, smooth, spade-like head: it has the smallest cephalofoil (hammerhead) of all Sphyrna species. … See more

This species occurs on both sides of the American coast, in regions where the water is usually warmer than 70 °F (21 °C). In the Atlantic, it ranges from New England, where it is rare, to the Gulf of Mexico and Brazil, and in the Pacific it ranges from southern See more

The bonnethead was formerly classified as a least-concern species by the IUCN. It is heavily targeted by commercial and recreational fisheries and constitutes up to 50% of all small … See more