Remove the predators, and the whole ecosystem begins to crash like a house of cards. As the sharks disappear, the predator-prey balance dramatically shifts, and the health of our oceans declines.

For a photographer, sharks are a stirring subject, possessing a perfect blend of grace and power. They have been sculpted by evolution and are ideally suited for whichever ecosystem they inhabit, from coral reefs to the open ocean.

Most whale photos you see show whales in this beautiful blue water - it's almost like space.