If zombies are attracted to non-environmental movement, then wouldn't zombies be drawn to each other? Is that why more zombies come when they find food?
Why don't zombies try to eat each other? Do humans smell different perhaps?
If 'runners' are alive humans with infected brains, why don't zombies attack them? Do they attack them but the runners fight them off?
I would like to know your opinions! I can't quite figure this out...
Well think of it this way why does a flu virus not attack another flu virus? All a zed wants is to spread its infection the idea that they have to feed or otherwise sustain themselves seems to lean to just being scared survivor story's. There dead the need to eat is beyond them there only drive is to spread as fast as it can to ensure the bacterias survival they dont attack one another because they are one another one mind one purpose. . . hmmm kinda like us.