8 Scientific Theories That Totally Change Zombie Films

5. They'd Probably Be Driven By Smell

So, if the disease is spread by human vectors, it makes the most sense to get away from humans, particularly the bitey ones. Getting out into the countryside seems like a pretty good idea, but only if nobody else has the same idea. If, however, we go with our second option of airborne zombieism, the thing you really want to avoid is death. In this case, isolating yourself on a precipitous mountain might not be the best option.

In either case, you will definitely want to avoid the zombies. So, what do you do when you inevitably come up against a horde of them? In the movies, a tense scene will usually ensue, in which the heroes put on their best zombie impression and shamble through the crowd, but is this the best option?

It's thought that, due to their limited mental faculties, zombies are more likely to sniff you out than see you, so you can leave the shambling theatrics alone so long as you smell the part.

You could smear zombie guts on yourself, but a less squishy way to get the death stink is to find some duckweed (no, really). The distinctive smell of death actually comes from a couple of compounds putrescine and cadaverine, both of which can be produced by decomposing duckweed.

They're also found in semen, so do with that information what you will.