After a dead body rots underground for a time, it may come to life, first its eyes will reopen, and fingers will begin twitching. The thumping of the heart may return, unless the heart has been removed. This is the rebirth of a human, the birth of a zombie.
Deteriorating, fallen apart and reaking of the foul stench of death, a zombie will raise from the grave by smashing through the coffin and lifting an arm out of the ground, in the normal zombie style. The zombie will proceed to lift itself out of the soil and moan, usually moaning anything like 'Yaaarghhh...' or 'BRAINS!'
If you fall victim to the zombie's feasting of your flesh and brain, you will become a zombie, forever walking, undead.
A deceased human being who has partially returned to life due to undeterminable causes. The brain retains base facilities, namely gross motor function. In its near-mindless state, it grasps no remains of emotion, personality, or sensation of pain. In rare cases, some of the reanimated have reflexively preformed routine activities from their past lives.
The rotting bodies of the undead operate on a fraction of the level at which our bodies normally function. Circulatory, respiratory, and digestive systems are unaffected by reanimation. Labored breathing, choking, and moaning are reflexive but no oxygen is carried through the blood. The nervous system functions primarily within the brain and brain stem. Sensory reception is minimal at best and seemingly unecessary in the pursuit of prey. The undead are incapable of fatigue and will persist at any cost. They will even crawl when their legs have been removed. Even if the head is removed from the body, it will continue to live. The only way to stop the reanimated is to destroy the brain. To prevent reanimation in the recently departed, decapitate the corpse and burn the body.
The only observable action a zombie takes part in is killing living creatures, especially humans, and eating them. Many theories and speculations surround this disturbing behavior. One theory is based on the thought that reanimation is the result of a contagious infection or virus, and that the primal drive to feed will spread the disease to other host bodies. Research has shown that although the majority of zombie attacks result in fatal wounds, all corpses return to life soon after passing, regardless of cause of death. Another theory is that zombies eat the brains of the living to refuel the "un-life" giving chemical serotonin. Because digestive and circulatory systems are incapable of bringing these elements to the brain, this just cannot be true. The final speculation seems the most obvious, that the dead feed for sustenance to satiate their unnatural metabolism. But because the gut has no function in the undead, this is also false. One documented encounter claims that a zombie was unable to move due to the sheer mass of undigested flesh resting in its distended gut. The creature continued to eat even after it's gut had burst open. Studies regarding the nature of feeding have proven that zombies will try to eat when their stomachs and even jaws have been removed. One explanation offers that the walking dead are the incarnation of death itself, a mockery of life that uses the vessels of the living to carry out their dark intentions, they are the opposite of life and are driven to simply undo it.
John: Hey the new Hummer is only going to be 36K! and it comes in yellow!
Steve: Should we devote more federal funds to conduct stem cell research?
John: Did you see American Idol last night?
Steve: Shouldn't we report that death threat letter we found at school today?
John: Huh? Were you speaking to me?
Steve: Never mind. Your such a Zombie.
John: (Groans. Starts chewing on Steve)
2.)Haitian voodoo mythology involving a human body being "zombified" by a "bokor" or voodoo priest. Nothing like most movie zombies, this is the original kind of zombie.
2.) The body became a zombie thanks to the bokor
1. The Voodoo Zombie, which is a living human who has lost it's free will.
2. The Viral Zombie, which is a reanimated (usually human) corpse that has been brought back to life.
3. The Chinese Zombie, which is a supernatural/spiritual being with a yellow piece of paper on its forehead, capable of moving very quickly, and jumping very far or flying.
A number of zombie survivalist organizations (ozort for example) exist worldwide that set up contingency in the event of an outbreak of Viral Zombies