Zombies are a popular horror phenomenon, relatively newer than many of its fellow genre-defining horror creatures, such as Vampires, Werewolves, or Mummies. As their inception is rooted in an age where science is a notably bigger part of everyday life, so too has the evolution of this genre swayed the development and understanding of the zombie towards a less mysticized version, to one where many of it's traits mimic, or can at least be understood in ways consistent with science. Still, both versions of the creature have inconsistancies, or traits that seem to either defy reason and science without further clarification, and their depiction in movies and television shows often defy logic and basic science.