The tragic death of a British man in Australia after being bitten by a shark means we will doubtless hear much in the next few days about the danger posed by these predators. Incidents like these do indeed demonstrate their deadly potential.
However, we should bear in mind that the number of humans they do actually kill are tiny. Especially when compared with the number of sharks that humans kill.
This matters because often the response to sharks attacking humans is to try and cull them: an action designed to soothe the nerves of anxious swimmers and surfers rather than keeping them safe.