Close-up View Of Endangered Giant Oceanic Manta Ray Swimming In The Subtropical Water

closeup endangered giant oceanic manta ray giant oceanic manta ray swim ocean fish underwater life creature saltwater water habitat nobody reef subtropical natural species bubble nature sea island national geographic view tropical beach nat geo big marine oceania aquatic deep marine animal endangered species batoidea mobula birostris environment behavior mantaray swimming blue animal clean waterscape undersea under seawater