This is why I’m confident World War Z will do the book justice. It’s doing something with zombies that I have never seen before. I know a lot of people are complaining that the zombies are fast, but honestly, the speed of a zombie doesn’t bother me. The way I see it, the speed of a zombie should be approximately the same as the speed of the human when they were alive.
What fascinates me most is the way the zombies move. In the first gif, they’re moving almost like a fluid. I love that, because it shows how the zombies are working neither in tandem nor competition with each other. Brooksverse zombies are unaware of everything but live prey, including one another, save the moan. So when one of them moans, they might all start heading in the same direction, but are totally unaware of one another.. They’re not racing each other and they’re not working as a team, they’re all just flowing over one another in the same direction.
Then I saw the shots in the second and third gifs, and it reminded me of something else that, when put in a large group, acts as a fluid: fire ants. The zombies in World War Z seem to move almost exactly like a colony of ants scavenging for food. The same way that ants are largely unresponsive to one another with the exception of following scent trails to a potential food source, zombies don’t seem to notice one another unless they’re following one of their signals to food.
That’s one of the things I loved most about the book. People show zombies, a lot of the time, as behaving like predators or scavengers, but in World War Z, they’re completely mindless, and hunger is the only thing left in their brains.