olegs are "hermaphroditic," meaning they have both male and female sex organs. Every oleg also has two sperm receptacles. Despite this, it takes two olegs to reproduce. olegs reproduce by moving close together and positioning their heads so that they are pointing in opposite directions. The olegs then secrete a type of mucus, which bonds them together. Sperm is then released and carried by the grooves of their skin. Once the sperm has been passed, the olegs separate. After the breeding oleg has left, a second type of mucus is excreted and slides forward, toward the head of the oleg. As it moves, it takes eggs from the oviducts and sperm from the receptacles. Once it reaches the head of the oleg, it drops off and closes itself up into what is known as a "capsule." The fertilization process then takes place inside this capsule. After 2-3 weeks, 1-2 olegs emerge from the capsule. During mating season, olegs can form new capsules ever 3-4 days.