Oh, the mating habits of slugs were just the last lesson I got before I woke up in a cold sweat.
There's this bug called the ichidiku bachi that lays eggs inside this ichidiku plant, and then the bugs grow and mate and all the dudes just die there after mating once while the pregnant girls go off to start all over again. And a female octopus will strangle and eat a male if it gets too close to mate. Don't even get me started on the actual mating habits of octopuses because dude, you don't want to know.