Natural


 * Appeal to nature — a logical fallacy
 * Philosophical naturalism — the doctrine that the natural world is all there is, in opposition to supernaturalism
 * Methodological naturalism — the required assumption of philosophical naturalism when working with the scientific method
 * NaturalNews — a crank alternative medicine website
 * Natural selection — a primary mechanism behind evolution
 * Natural philosophy — a phrase that was used to describe the work of early scientists, such as Isaac Newton
 * Natural childbirth — childbirth that is not medically assisted
 * Natural gas
 * Natural horsemanship
 * Natural law — the concept that incontrovertible laws of nature exist and should inform any of the laws written by governments and societies
 * Natural Law Party — a political party created by the Transcendental Meditation movement
 * Naturalistic fallacy — inferring how the world ought to be from the way it is or was in the past
 * Nature woo — the irrational belief in the goodness of all things deemed "natural", with the implicit or explicit fallacy of "appeal to nature"
 * Supernatural