Sociobiology is a synthesis of scientific disciplines that explains behavior in all species by considering the evolutionary advantages of social behaviors. It is considered a branch of biology & sociology, and it draws from ethology, evolution, zoology, population genetics, archeology, and other disciplines.Sociobiology is closely related to the fields of Human behavioral ecology and evolutionary psychology, within the study of human societies. Sociobiology gave rise to many new and advanced theories, in the process of studying the behaviors, psychology and evolution changes in animals and other perspectives in human beings.Sociobiological theory states that animal or human behavior cannot be satisfactorily explained entirely by cultural, environmental, ethnic, or individualistic factors alone. It states that in order to understand the behavior; it must be analyzed with some focus on its evolutionary origins, and with deep consideration for modern paradigms of sociology, psychology, anthropology and other human sciences. To understand and study the different behaviors of different species of animal and human being, sociobiology applied the methods of different theories, which are particularly used for understanding human and animal behavior (Behavioral ecology animals and Humans). For understanding the psychology mental and psychological traits, such as language as adaptation, memory, and other senses, it gave rise to new theory Evolutionary psychology.