Mysterious in its movements, ferocious and feared, the Tiger Shark is a highly-adaptable hunter, willing to swallow up whatever it can catch. Even a turtle's shell offers little resistance to its powerful jaws and saw-edged teeth. Today, sharks the world over are suffering from a range of environmental pressures. Can these prehistoric predators survive the mounting assaults of the 21st century?

Mysterious in its movements, ferocious and feared, the Tiger Shark is a highly-adaptable hunter, willing to swallow up whatever it can catch. Even a turtle's shell offers little resistance to its powerful jaws and saw-edged teeth. Today, sharks the world over are suffering from a range of environmental pressures. Can these prehistoric predators survive the mounting assaults of the 21st century?