Attack of the Samurai Sharks

A 3,000-year-old skeleton originally found in the 1920’s near Japan’s Seto Inland Sea is covered in unusually deep cut marks. He looks like the victim of a frenzied samurai sword attack. But the man, called “Tsukumo 24”, died hundreds of years before the first Japanese swords were made.

Now, an international team of scientists at Kyoto University reopens the case with a startling theory: was this man killed by a shark? If so, could this be the oldest shark attack ever investigated — and which species is the prime suspect?