couple questions I have are: how to the walkers just seem to be stuck in some building somewhere, like the school but as soon as they broke the glass window they poured out. I reckon they can't really 'think' and are basically existing on minimal animalistc brain functions. They can't really get tired since they don't breath so no cardio vascular stamina needed (didn't they speculate about that in the beginning of season2 when a couple walkers come into their little camp?); likewise, I wonder if their bodies would respond to the cold, they don't seem affected by the heat and humidity found in ATL in the summer.
oh well, fun show with lots to speculate about and enjoy!
The walkers seem to go almost dormant in the absence of a living stimulus. When given the prospect of something to munch on, they do attempt to break glass (department store in season 1). Without stimulus, they shuffle about in circles.
Regardless, i loved the scene of Shane breaking the window and zombies pouring out like a big undead pinata. Especially good when you contrast it to Shane breaking open the barn and zombies pouring out like a big undead pinata. What a difference a little preparation for what's coming makes.
Regarding heat and cold - Summer heat would affect respiratory system and body/brain temperature but I don't think that matters to walkers. The humidity should just serve to accellerate decomposition. I wonder what the walker situation is in southern Louisiana? They should all just be skeletal remains by now.
Cold, though, should cause tissue - even undead tissue - to freeze solid. Especially when that tissue has no metabolic process generating heat.
On the other hand, this seemed to have no effect in the movie Dead Snow.