Are you sure this is not another ray sticking it, seems it would need to be forced in there, I could understand if harassing another ray that was about to shed and it stuck I'm there....it is hard to see how it could accidentally swim in to it and it would stick in there?
If it is the own rays stinger and it just swum in to it then it needs to understand what sort of fish it is....its like a cobra biting it's own Tongue?
If it is the own rays stinger and it just swum in to it then it needs to understand what sort of fish it is....its like a cobra biting it's own Tongue?