1994 : Despite rescue efforts , it sank . The dolphin was stranded in Brooklyn 's heavily polluted Gowanus Canal . After being stuck in murky low-tide waters for most of the day , the Common Dolphin passed away Friday evening , according to Joanne Biegert of the Riverhead Foundation . Emergency personnel gathered Friday alongside the canal . Rescuers had hoped to wait until high tide to determine whether it could save itself .
1994 : Despite rescue efforts , it sank . The dolphin was stranded in Brooklyn 's heavily polluted Gowanus Canal . Emergency personnel gathered Friday alongside the canal . Rescuers had hoped to wait until high tide to determine whether it could save itself .