Yawning : An Evolutionary Perspective

  title={Yawning : An Evolutionary Perspective},
  author={Elliot O'Brian Smith},
Evolutionary analyses of human behavior have illuminated a number of fundamental questions (i.e., foraging, mating systems, communication, etc.), and a wide array of behaviors have been targeted for investigation (infanticide, polygyny, child abuse, homicide, etc.). In general, investigation has centered on complex behaviors organized into broader… CONTINUE READING