Well, in the most widely accepted version of the viral zombie, the somnabulist, created and used by many zombie movie makers but detailed by Max Brooks, the virus only reannimates humans. Animals can be infected, and it will kill them, but they won't come back. Eating said animals isn't advised though, as the virus will still be present.GunsmithKitten said:Who says there aren't? Even Resident Evil gives us the Cerberus dogs.
And yes, I'm far more terrified of undead dogs and bears than of humans.
It varies here and there, some versions do have zombie animals (the most widespread being the T-virus, which seems capable of infecting anything, even plant matter), and some versions may make animals full-on immune, which isn't advisable, as the question arises of why nobody's looked to them for research into a vaccine, but in the most popular version of the zombie virus, animals simply aren't re-animated.