While attacks on humans are rare ... One fatality is reported by the International Shark Attack File. Shortfin mako sharks are known for their exceptional speed, agility, and predatory prowess.

"Although the porbeagle is related to the much-feared shortfin mako and white shark, it rarely attacks humans. The International Shark Attack File (ISAF) lists two unprovoked attacks by porbeagles ...

If you thought it was completely safe to swim in English seas, you may be wrong, and could encounter a seriously ‘dangerous' shark.