 Human subjects directly exposed to the unobstructed vocalizations of SCP-336 experience one of two effects, depending on the presence of a Y chromosome in the subject's genome. Subjects lacking a Y chromosome and possessing otherwise healthy reproductive systems will experience inexplicable infertility. Subjects with a Y chromosome experience a separate anomaly. During an affected subject's next regular sleep cycle, he will instead enter a coma six to eight hours in duration in place of normal rest. Over the course of this coma, approximately 100 grams of non-essential tissue will separate from the subject seamlessly, transforming into a full-grown instance of SCP-336-1.