Lost your appetite? Incredible photos show tiger sharks swimming through a huge school of fish without taking a single bite
With their razor sharp teeth and menacing features, they are widely considered the monsters of the deep.
But a beautiful set of underwater images show a very different side to sharks as more graceful creatures.
They show sand tiger sharks gliding majestically through a 'tunnel' of tiny fish, packed tightly together in a spherical formation known as a 'bait ball'.
Photographer Tanya Houppermans described one of her images - in which a shark swam out of a 'tunnel' and straight towards her - as 'one in a million'.
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