Whatever your opinion is of unexplained animal mutilations in general and the work of Chris O’Brien in particular, his newest book Stalking The Herd is perhaps either the first or last you will need to read on the subject. In my opinion, it is exhaustive and well-balanced, afraid of neither the mundane or the truly bizarre.
We discussed the history of cows and their relationship to humans. Chris mentioned the fact that countries with less consumption of beef have no record of cattle mutilations, even if they have a thriving beef industry. He also elaborated on the fact that many of the cases of unsolved animal deaths have historically seemed to cluster downwind from facilities that process and use uranium. These are only a couple of the subjects that came up during the wide-ranging conversation.
With all this information, it is surprising that Chris has come to the conclusion that so far there is no one theory that seems to fit the mystery.