Questions that arise from Zombieland

[Pete Nice]

What about a the lifespan??? How long would a zombie survive, pending they don't get their head removed? With their body decomposing, there must be a limit....

And, if their body can't handle the cold, I am heading to Canada when the outbreak kicks in.... just saying

I have heard, that in normal conditions, like say Pennsylvania, 2 to 3 years max. Less in a desert or jungle and more in an arctic area.

If Canada has a castle with big walls and moat, I am there.