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There are 3-5 ridges on each blade on small specimens and as many as 5 or 6 in larger individuals.
The teeth along the posterior margin are short with the median tooth slightly longer than the other teeth.
This warm-water, coastal shark eats bony fish and invertebrates, as well as other sharks and rays.
The great hammerhead migrates seasonally, moving poleward to cooler waters during the summer months.
Fished both commercially and recreationally, great hammerheads are highly valued for their fins while the meat is rarely consumed by humans.
They are also provide liver oil used in vitamins, hides for leather, and carcasses ground into fishmeal.
The first dorsal fin is very tall with a pointed tip and strongly falcate in shape while the second dorsal is also high with a strongly concave rear margin.
The origin of the first dorsal fin is opposite or slightly behind the pectoral fin axil with the free rear tip falling short to above the origin of the pelvic fins.
Although not often a targeted species, the great hammerhead is regularly caught in tropical regions with longlines, bottom nets, hook-and-line, and trawls.