how could you dominate a species more

wtf in the truest sense of the words.
Bug powder causes male bedbugs to stab each other to death with their penises

Male bedbugs will schtup anything, and when they do, their stabby little penises can do great damage to one another. A pheromone discovered by a Swedish researcher can cause male bedbugs to kill each other with their penises through uncontrolled shagging.
via