Quote:It seems the walkers go into a hibernation mode when they can't move or are contained. I also think they become more sluggish the older they get. We've seen plenty of times were when one is stuck or immobile come to life when disturbed.


The smells. They can differentiate between dead and alive through smell. One episode the characters essentially dressed up as walkers to mask their smell so they could walk amogst the walkers. I do wonder why they don't use this more often. And also what happens when the walkers nose is chopped off. Does it solely rely on sound and sight and take a bite out of anything? I dunno.