The study of human behavior exerts widespread fascination for many different people. Novelists and poets, philosophers, historians, sociologists, political scientists, psychologists and psychiatrists, all deal with particular aspects. All of them would agree, "What a piece of work is man!... How infinite in faculty! In form and moving how express and admirable!" And they all might add, "In his social relations, how complex and unfathomable!" The nature of man and his relation to his fellowmen is a field as inexhaustable as it is enticing.
The progress of the arts and the sciences continually offers new insights. And as the so-called "social sciences" approach more and more closely to the "biological sciences," scholars help to unravel some of the complexities. The study of animal behavior has much to offer in the understanding of human nature. Physiologists and neuroanatomists, chemists and endocrinologists, have analyzed many relevant physical factors which help regulate animal