Rio dolphin population in declineTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video08/04/2016August 4, 2016The Olympic sailing competition will take place in Guanabara Bay near Rio. If the sailors are lucky enough they might sail past a few dozen dolphins. Despite heavy pollution the animals are still living in the bay, but they are in great danger.https://p.dw.com/p/1JbQmAdvertisement