The thing about zombies is they smell, they interrupt you when you’re speaking, and they’re always eating. (Enter middle-aged mother of teenage boys stand-up comic joke here.) The other thing about them is that they are resilient. You can fill their torso full of bullets or cut off their head, but they will keep on trying to bite you to death. The only way to make certain they are dead is to kill the brain. Which you can do via an arrow through the eye socket if you’re interested in style points. If you’re going to be one of the last people on Earth, you may as well be one of the most awesome.
For a show about people getting eaten by zombies, we didn’t really get to see a lot of people being eaten by zombies. That’s okay, though, because it upped the tension. You knew that some member of the group (besides Ed) was going to end up on a serving platter, and when it finally happened, it was going to be absolutely shocking and grotesque. Sadly, it was resident hot chick, Amy. Not cool, zombies.
When the group encounters Creepy Scientist Guy at the CDC, he shares his findings with him by way of a MRI video showing what happens when the brain is overtaken by the undead sickness. This is ended when a bullet bores throught the subject’s skull. Okay. Makes sense from a scientific standpoint. Not creepy at all. Until you realize that the subject is the scientist’s wife and he keeps playing the imagery on a loop.