Though snails do not self-fertilize, they possess both sexual organs. Before mating, they release a calcified spike at each other, similarly to that of darts, which provides the storage of sperm in the snail’s uterus with their genitals being located behind their eye-stalks on their necks. They wrestle not only to get to find an excellent position for shooting these darts but to evade hitting themselves. One snail will stab the other to exchange the small spikes of sperm and being hermaphrodites they fertilize each other. After finishing the deed, the snails slowly but surely move on to regular programming.