It seems that, even after years of evolution, some human traits don’t change. A recent study conducted by sociologists at Chapman University reveals that human beings’ number one fear is; walking alone at night in the dark. We still fear what we cannot see even if there isn’t anything there to be seen! The study went on to explain that this is a deeply ingrained survival instinct because most predators see better at night and therefore hunted early man in the dark. And of course the humans who weren’t afraid of the dark and walked around outside at night got eaten!