The story of a sea lamprey

A long time ago, a sea lamprey which lived in the open ocean stumbled on the reef. [Now, sea lampreys normally live out in the open sea. They suck blood from other animals, but this one preferred small fish.] The lamprey chased a bluegill longfin aruond in circles, but the longfin broke the circle and zipped for the cover of coral. The lamprey looked like an eel, but it had a circular mouth with rows of sharp teeth.