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Here are all the hammerhead shark facts you need to know ... the most recognizable is the first dorsal fin—it typically acts ...

that's a shark mate." Soon comments came flooding in on social media as viewers speculated about what the animal could be. Mark Lloyd said: "Looks like a hammerhead dorsal." READ MORE: Man's ...

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