https://avoimenkoodinmaailma.blogspot.com/ Kimmo Huosionmaa This is the thing, what I would write also in the future. Cuckoo is the bird, what kills it stepsiblings. The thing happens because the cuckoo has sensitive point in it's back and when other chicks in the den would touch that point, will the cuckoo push them out from the den. This behavior has given the name for the effect, where one of the siblings kills family members. Sometimes we will face the news, where is told about domestic violence, where one member of the family has killed one or more members of the family, and this is of course very sad. But why somebody makes that thing? Sometimes there is the tumor in the brain tissue, what causes violent behavior, but sometimes the reason is that this member of the family has been violated in the society. In this kind of cases, one member of the group would face the violation. When we are thinking about the cases, where only one member of the group has been targe