I used to live in Texas. I've seen stuff decompose in 90 degree heat. It doesn't take long. I figure in about 2 weeks all the walking dead would be a pile of not-so-walking bones. So, 2 weeks and the zombie apocalypse is over. My completely unscientific prediction. For those of us in colder climes, the zombies will have to figure out how to not freeze solid ovenight.
In other words... in the Z Apocalypse, California is "not
the place ya oughta be".
I'd like to see what would happen when a Z wanders onto a big fire ant mound... would they strip 'im clean?