SURVIVAL OF THE FITTEST: crocodile Eats up Shark. (PHOTOs)

It's an old age question pondered by some of the greatest minds in the playground. Who would win: a crocodile or a shark? Now a British tourist has given a definitive answer to the riddle by capturing the moment one of the powerful reptiles munched on its aquatic rival. Holidaymaker Peter Jones, 62, witnessed the savage moment when he embarked on a river cruise in Kakadu National Park in Australia's tropical Northern Territory.

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