Risso's dolphin takes breath and dives down into azure ocean, top-down aerial

rissos dolphin grampus griseus grampus azores cetacean dolphins portugal marine life delphinidae rissos dolphin take breath dive down azure ocean aerial crystal clear aquatic mammal streamlined cetacea aquatic wildlife sea swimming swim sea animals fauna blue ocean breaking surface blue drone marine nature outdoors animal wild no people ocean life aquatic sea life blue water wildlife pelagic aqua marine environment natural top down overhead wild animal topdown