We’ve already discussed the possibility that zombies recognize humans by using their sense of touch. Looking at the seemingly random pattern that many predators use to locate food over great distances may offer an explanation for how the undead find people in the first place.
An article in Science Daily explains that hungry sharks, turtles, fish and other marine predators use a hunting system known as the Levy Walk, or Levy Flight. Though it appears to be random wandering, the Levy Walk is actually a superior strategy for finding prey in vast areas where food is sparse and hidden. Dr. David Sims continues:
“We developed a computer model from the foraging data, and this confirmed that the observed patterns were indeed optimal for naturally dynamic prey fields.”
The Levy Walk is also a commonly occurring pattern in nature, and is used in earthquake data analysis, financial mathematics, cryptography, astronomy, biology, and physics.
If zombies employ this same method, their movement around a mostly abandoned city would allow them the best chance to find and eat the few remaining humans left. In rural areas, a remote farmhouse could be stumbled upon in less time, and with less effort.
So if you’re building your zombie survival plan around the notion that the undead wander around aimlessly, beware. Their chaotic movement may in fact be leading them straight to your front door.