In the book An Instinct for Dragons^[6] anthropologist David E. Jones suggests a hypothesis that humans just like monkeys have inherited instinctive reactions to snakes, large cats and birds of prey. Dragons have features that are combinations of these three. Our instinctive fear for these three would explain why dragons with similar features occur in stories from independent cultures on all continents. Other authors have suggested that especially under the influence of drugs or in dreams, this instinct may give raise to fantasies about dragons, snakes, spiders, etc, which would explain why these symbols are popular in drug culture. The traditional mainstream explanation to the folklore dragons does however not rely on human instinct, but on the assumption that fossil remains of dinosaurs gave raise to similar speculations all over the world