Thursday, February 6, 2014

Day 284 – Zombiology 101: A Definitive Guide to Decomposition

Well, s**t.
Apparently we know less than nothing. We managed to get a few websites pulled up after the zombiology entry of last week and it turns out all my theorization was for naught. As it turns out rigor mortis is the result of chemical changes in the muscles after the death. It starts about three or four hours after death and the corpse is at its stiffest (giggity) after 12 hours. BUT! The rigor mortis gradually dissipates after 48 hours. So clearly, rigor mortis is not an issue.
But I managed to find an article about animal decomposition.  I know this is not the best display of leadership but I am keeping these facts from my fellow survivors. I am not lying to them but I am just not openly telling them these facts that I have discovered. It is not because I am a jerk, I just see no reason to bring them down. Okay, so let me break it down.
Decomposition begins at the moment of death. Autolysis is where the tissue of the body is broken down by the body’s own internal enzymes. I have a theory that possibly the Kharon virus prevents autolysis from taking place, slowing the decay.
Putrefaction is where the tissue is broken down by bacteria. I think this is the biggest thing we have going for us. Okay, so the biggest things that speed in decomposition are bacteria (money), fungi (I don’t see how that is happening), and scavengers. Note: We have yet to see maggots growing on zombies and when we are disposing of their bodies, we have yet to see insects infesting their bodies. Scavengers (buzzards and such) don’t touch these things, even after they have been brain panned So it is something along the lines of the scavengers having some sort of sixth sense regarding Kharon infected meat and they know better than to eat it.
So what we are looking at is the only decomposing agent we have working in our favor is the bacteria. With this, it means that the one year plan that we discussed earlier could be wrong. There are certain elements that do contribute to decomposition.
It is proven that bodies exposed to the open elements will decompose faster but that is mainly because a body in the open is more susceptible to insect infestation. Insect infestation is not an issue for zoms.
Temperature is a huge issue for decomposition so the summer time in Oklahoma was a huge help for us. Winter time, not so much. The availability of oxygen, humidity, and rainfall are also an issue too. If a body is wearing clothing that can have an effect but I cannot imagine us running around and undressing a bunch of zoms to get them to decay faster. The surface on which a body rests is supposed to be an issue but these guys don’t rest a whole lot.
Now, one curious factor that is an issue on decomposition (according to the article is) “foods/object inside the specimen’s digestive tract (bacon compared to lettuce).” The article did not go into if it is better or worse to have bacon or lettuce. Lettuce will rot much sooner than bacon (I would think). So could eating all that human flesh slow the decomposition?
But the article also had a thing called Casper’s Ratio. Casper’s Ratio states “if all other factors are equal, then, when there is free access of air a body decomposes twice as fast than if immersed in water and eight times faster than if buried in earth. Ultimately, the rate of bacterial decomposition acting on the tissue will be depend upon the temperature of the surroundings. Colder temperatures decrease the rate of decomposition while warmer temperatures increase it.”
One of the biggest variables is flies. The more flies, the faster the decomposition, and from what we have seen, flies have no interest in zoms. They say invertebrates can reduce a fully fleshed corpse to clean bones in under two weeks. But in extremely dry or cold conditions, the normal process of decomposition is halted.    
So, without flies, scavengers, and maggots causing these bodies to decompose, maybe our yearlong theory is not a long enough timeline. We will just have to see what happens when we come out of this winter.