While the cattle mutilation phenomenon includes many cases that are genuinely puzzling, it has also attracted hoaxers, pranksters, and copycats. Several documented instances of deliberate cattle mutilation by humans have been prosecuted, typically involving individuals inspired by media coverage of the phenomenon. In some cases, perpetrators used surgical instruments to replicate the characteristic injuries described in news reports, creating 'mutilations' that were then reported as genuine anomalous events. These hoax cases complicate the overall picture because they demonstrate that some reported mutilations are indeed the work of humans with cutting tools — lending credibility to the skeptical position that all mutilations have conventional explanations. However, investigators note that known hoax cases are relatively rare compared to the total volume of reports, and that the hoaxed mutilations are often distinguishable from the 'classic' cases by their crude execution and the presence of footprints, tire tracks, and other human evidence that is conspicuously absent from the more puzzling cases.
