I think from what I've read previously cattle mutilations always have a dead cow missing soft tissue areas, however soft tissue is the easiest for other creatures to eat from, notibly buzzards since they can't rip and tear with the same ferociousness as a carnivore.
The mutilations that people suggested were alien are those where "Particular" organs are missing which involves some form of incision to remove. I think judging by the released data of the information on mutilation investigations conducted the conclusion was down to "cult activity", it also ties in with certain factors of older pagan religions using sacrifices in Central America.
There is also the extreme possibility that Animal blood is finding it's way into the blood bank system, since in the US blood is money. (I suppose you can say it's unsupported but I'm guessing Animal blood could be cut with human blood to increase quantity and get past genetic testing.)
The mutilations that people suggested were alien are those where "Particular" organs are missing which involves some form of incision to remove. I think judging by the released data of the information on mutilation investigations conducted the conclusion was down to "cult activity", it also ties in with certain factors of older pagan religions using sacrifices in Central America.
There is also the extreme possibility that Animal blood is finding it's way into the blood bank system, since in the US blood is money. (I suppose you can say it's unsupported but I'm guessing Animal blood could be cut with human blood to increase quantity and get past genetic testing.)