3 scientific reasons aliens are behind cattle mutilations

I have an American History degree. I asked all of my professors if I could write my papers on UFOs. They all agreed. My final paper for my bachelors degree was on cattle mutilations. I found three pieces of evidence proving aliens are the cause of cattle mutilations. I cannot remember the sources of these three facts but I believe Peter Brookesmith is one source and Linda Moulton Howe is two. The first fact is that its generally believed lasers are used. The cuts were scientifically analyzed and no carbon was found in the cuts. Lasers are not the culprit because lasers would leave carbon behind. The second fact also deals with the cuts. The cuts are so precise they are made between the individual cells of the animal. Not a single cell is damaged. When I studied this in 1998 we had the technology to do this in the lab but not out in a field. The biggest issue being time, a one inch cut would take eight hours. Finally, the lack of blood in and around the carcass. The strange part here involves the blood vessels. There is only two ways to drain an animal of blood, suck it out or pump it out. Both of these methods cause the blood vessels to collapse. The blood vessels on mutilated cattle were found to be open. The blood had just seemed to have vanished. We do not have this type of technology. All three pieces of evidence point to aliens, as humans did not possess the ability. The next time someone claims its the government, clue them in.