The mind numbing Raven paradox, also known as Hempel's paradox or Hempel's ravens is a paradox proposed by the German logician Carl Gustav Hempel in the 1940s to illustrate a problem where inductive logic violates intuition. It reveals the fundamental problem of induction - All Ravens are black, thus anything that is not black is not a Raven. On the

Ravens figure heavily in Celtic mythology and legend. They were linked to darkness and death - especially the death of warriors in battle. Celtic war goddesses often took the form of a raven. In "The Dream of Rhonabwy", the knight Owein battles King Arthur in a dream world assisted by ravens. Some tales suggest that the great King Arthur himself

John Marzluff and Tony Angell examine the often surprising ways that crows and humans interact. The authors contend that those interactions reflect a process of "cultural coevolution." They offer a challenging new view of the human-crow dynamic a view that may change our thinking not only about crows but also about ourselves.