In  July of 1947, Army and Air Force units recovered an alien disk in the Four Corners area of the southwestern United States.  The mutilated remains of several military personnel were found on board the craft.  As far as we know, this was the first major indication that human beings were being taken by an alien species.
 
The U.S.  Air Force prepared a document known as PROJECT GRUDGE/BLUE BOOK REPORT NO. 13.  This Report gave clear indication of reports of human mutilations.  The most notable case involved an Air Force Sergeant (EE-6) by the name of Jonathan P. Lovette.  He was observed being taken captive aboard what appeared to be a UFO at the White Sands Missile Test Range in New Mexico.  This abduction took place in March of 1956 at about 3:00 AM local time and was witnessed  by Major William Cunningham of the United States Air Force Missile Test Command near Holloman Air Force Base.
 
         An extensive search for Sgt. Lovette was conducted.  After 3 days, his nude body was found approximately 10 miles downrange.  The body had been mutilated; the tongue had been removed from the lower portion of the jaw.  An incision had been made just under the tip of the chin and extended all the way back to the esophagus and larynx.  He had been emasculated and his eyes and anus had also been removed.  Also, there were comments in the report on the apparent surgical skill of the removal of these organs.  The report commented that the anus and genitalia had been removed 'as though a plug' which, in the case of the anus, extended all the way up to the colon.  The initial autopsy report confirmed that the system had been completely drained of blood and that there was no vascular collapse due to death by bleeding.
 
The Grays secure biological raw materials from life forms on Earth for their genetic work.  Many researchers state that the aliens are doing genetic "experiments".  They are not playing around - they know exactly what they're doing, and it is more like a "labor of love" than experimentation.  The animal mutilations provide, when evaluated in the lab, DNA, RNA and other materials, as well as different kinds of tissue.  Tissue extracts taken from cattle intestine, for example, are absorption-based tissues.  Other tissues excrete hormonal substances.
 
Artificial brain matter is grown in containers or vats that appear to be electronically stimulated.  In some cases, humans are killed and tossed into the vats.  In two cases, dead humans have been seen floating in vats right next to the body parts of cattle.  Human mutilations appear to be less obvious than cattle mutilations, although both still continue to this day.
 
The following are findings which suggest that animal mutilations are worthy of further investigation:
 
         1.   Animal with "cookie cutter" incisions, i.e. cuts that are
               sharp, well defined and have smooth edges.
         2.   Cored out incisions in rectal or genital areas.
         3.   Removal of body parts particularly genitals, ears, tongue,
               heart, and extremities.
         4.   Absence of blood in or around the animal.
         5.   Removal of flesh to bone especially in the lower jaw.  The
               bone is stripped of all flesh to clean bone, even in animals
               dead for 12 hours or less.
         6.   In the area where the animal is found, finding of unusual
               soil conditions, such as hard or baked appearing soil.
 
You will recall that "mutilations" generally result in all of the blood being withdrawn from the body.  The blood and other bodily fluids are then transferred to holding containers, or vats, along with other body parts.  These materials are suspended in a purple-red fluid that is agitated.  The Grays have been seen bobbing up and down in this mixture, almost swimming, absorbing the nutrients through their skin.