#seks It wasn't that easy with so many legs getting in the way. Scientists know pretty well how sex happens in many animals. However, there are a number of exceptions, including the millipede. Because how millipedes mate, until now, has been a great mystery. That is not so surprising, because how are you supposed to look past all these countless legs? But with the help of new imaging techniques and black light, a persistent team has now managed to understand how the complex genitals of these little creatures work.