Moooooooooo... 
Right now you must be thinking, “What do cows have to do with our Universe?” Well, I would like to take this opportunity to introduce you to a phenomenon commonly known as cattle mutilations. This is one of the more bizarre aspects of alien culture, in which cattle and other animals have been found dead with strange mutilations. Organs, especially genitals, have been removed “with surgical precision” but no blood appears on the ground. These events are often associated with reports of alien encounters and UFOs.  The possibility of Satanists has been considered as an alternative explanation for many of the mutilations, as these groups of people are often responsible for killing goats; however, there is not the surgical precision in their murders that is seen in cattle mutilations. The most compelling sceptical hypothesis that I have seen is that cattle farmers have been mutilating already dead cattle by unusual methods and reporting UFO sightings in order to receive insurance for their valuable cattle. This hypothesis is supported by the following facts: 
  1. Cattle are very expensive (each is worth several thousand dollars). 
  2. Insurance doesn't cover “range death” due to natural causes (eg. a cattle falling and killing themselves); however insurance does cover vandalism (eg. a vandal shooting a cow). 
  3. Remarkably enough, a space alien killing a cow will be considered as vandalism and covered by insurance - provided that a policeman will write the report up this way. 
  4. Space aliens mutilating cows seem to respect police jurisdiction lines (outside of which vandalism isn’t covered by insurance). 
  5. Relatively little blood leaks out of a dead cattle when it is cut or mutilated (because the heart isn't pumping). 
These facts are convincing, however there is insufficient evidence to prove, beyond reasonable doubt, that this is the true explanation for the majority of cases. But what motives could the extra-terrestrials possibly have to mutilate cattle? After browsing the Internet I was able to find a few possible candidates: 
 
  1. They need cow blood and glands for food and experiments (yummy). 
  2. They are harvesting enzymes and are working on a genetic engineering project that will blend the Gray race (the aliens) with a Nordic race, so that they will be able to interface with humans better. 
  3. They are altering cow DNA to create some sort of artificial life form. 
The creators of Southpark have offered a slightly more plausible explanation to this taxing question – it is that, in all their searching, the cows were the most intelligent creatures that these alien vandals could find on this pale blue dot we know as Earth. 
 
John the Cow
You can e-mail John Marshall at: johnmm@ucla.edu