Cattle mutilations have been going on by UFOs for centuries. There were records of these occurrences in Europe and the Americas for hundreds for years. In 1970 the numbers were so great that the FBI was called in to investigate. During that period ranchers lost thousands of cattle with no explanation. Unfortunately due to jurisdictional issues the FBI was unable to complete their investigation. However within the FBI records vault we found five documents to share with you and you can find them HERE.