
Ignoring The Blob, let's move on...

I guess a lot of this comes down to what's reanimating the dead in the first place. Is it a virus? Nanomachines? Cosmic radiation? Some kind of mysticism or judgment from God? Obviously the whatever-it-is has some form of regenerative ability or the dead wouldn't be walking around trying to eat your face in the first place. As long as their brain survives they still have enough presence to walk around. Kill the brain and you kill them. That's pretty common in the movies, except for Return of the Living Dead, where you couldn't re-kill them at all.

Here's what I think: whatever is re-animating them has to replenish itself in some way. The body's functions no longer, um, function. Heart doesn't pump, blood doesn't flow, toxins don't get flushed out in the bathroom... It's a one-way system. They eat skin, blood, brains, whatever, but where does it go? There must be SOME kind of process still working in the body that converts what they hunger for into something they can use, else why would they be hungry in the first place? Why not just stumble around and scare people and not eat them? Why the insatiable hunger?

So the virus/radiation/nanobots/whatever need energy/food to keep animating the flesh. To do so it needs to keep the body at least well enough to keep mobile. Maybe it feeds on the life force itself (read Bram Stoker's Dracula and Renfield's description of eating flies) and uses that to replenish itself. Keep a zombie locked up in a room for 20 years with no food and would you still have an active zombie? That's a good question. My guess is yes, just because it'd be out of the elements.
If the zombies were successful and ate their entire food supply would they eventually rot away? Maybe... my guess is that eventually they'd turn on each other for food or somehow they could eat trees/grass/plants/etc.

Food for thought?



