Zombie Olfaction: Smells Like Undead Spirit

If you’re preparing for the zombie apocalypse, you might want to read up on olfaction—the undead are known to rely on their sense of smell.

Misty cemetery
Olfaction is the only sense with a direct route from sensory cells to the brain, which may explain the tight connection between flashbulb memories, like those you might create were you attacked by a zombie while walking through the cemetery, and scent.
Photo by Fotolia/AlienCat