 I was watching this video, it was two male fish. I forget the species, but they dig holes. And the female fish only wanna mate with the male fish that has a clean little hole in the sand. So the other males come and they spit sand to mess up the other dude's hole. So it'll look messy. So all day, these males sit there spitting sand in each other to compete. That's the competition. And I wish the world wasn't that way, but that's the law of the jungle, man.