The shark is nature's perfect critter: Millions of year of evolution have not changed this animal; it is perfectly suited to hunt and kill in its environment.

According to research, the number of shark attacks is steadily increasing each decade. However, this is only because of an increase in people getting close to sharks.

Not that this will comfort you in any way if you end up with a three-tiered chomp on your abdomen. To swim with sharks in Britain, click here.

For more details about this boundary-pushing book click here.