Peter Klimley is a man who has held his breath and dived down 100 feet to hand-tag hammerhead sharks ... with towering black dorsal fin, to gauge the reaction of lemon sharks (one tried to bite ...

Divers have little trouble recognizing a hammerhead ... shark. 5. Great hammerheads like to swim sideways. A typical shark ...

But ongoing efforts to identify shark “hotspots” across the oceans could help improve their chances of survival in future. At particular risk is the scalloped hammerhead shark, whose young ...