The Aesthetic Animal answers the ultimate questions of why we adorn ourselves; embellish our things and surroundings; and produce art, music, song, dance, and fiction. Humans are aesthetic animals that spend vast amounts of time and resources on seemingly useless aesthetic activities. However, nature would not allow a species to waste precious time and effort on activities completely unrelated to the survival, reproduction, and well-being of that species. Consequently, the aesthetic impulse must have some important biological functions. An impulse is a natural, internal behavioral incentive that does not need external reward to exist. A number of observations indicate that the aesthetic impulse is exactly such an inherent part of human nature, and therefore it is a primary impulse in its own right with several important functions. The aesthetic impulse may guide us toward what is biologically good for us and help us choose the right fitness-enhancing items in our surroundings. It is a valid individual fitness indicator, as well as a unifying social group marker, and aesthetically skilled individuals get more mating possibilities, higher status, and more collaborative offers. This book is written in a lively and entertaining tone, and it presents an original and comprehensive synthesis of the empirical field, synthesizing data from archeology, cave art, anthropology, biology, ethology, and experimental and evolutionary psychology and neuro-aesthetics.