Olympic sailors may see dolphins in Rio's Guanabara Bay
8/3/2016
But if they are lucky enough, they might also sail past a few dozen dolphins that live in Guanabara Bay. Despite the untreated sewage and toxic ...
In this July 15, 2016 photo, a group of Guiana dolphins swim near fish farm pens in Guanabara Bay near Rio de Janeiro, Brazil. Olympic sailors ...