Since whales are teaming up with each other to take down yachts and teaching others how to do it I thought this would be a fun question.
If a majority of intelligent enough sea animals that could communicate with each other teamed up to mess with human activities in the sea who would win.
By the way for people that say that humans would obviously win we have already lost a war against emus before.
Why the fuck would I mean explosives, did you think by kill I meant their heads would explode? Most marine life depend on sounds more than us as such have more sensitive hearing which get disrupted and damaged more easily because of it by the sounds we make, especially sonar.