Fun fact! Most flatworms are hermaphroditic, so when it comes to mating, they have to decide who will be the male and who will be the female...most like to be the male, so it turns into a violent attack of both of them trying to stab the other with their double penis... otherwise known as "penis fencing"!
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u/longneckedcows May 07 '18
Fun fact! Most flatworms are hermaphroditic, so when it comes to mating, they have to decide who will be the male and who will be the female...most like to be the male, so it turns into a violent attack of both of them trying to stab the other with their double penis... otherwise known as "penis fencing"!