Hominids have undergone great changes from the primitive man to one capable of thinking logically and systematically like the modern man. Human evolution was marked by bipedal movement and occurred between four and five million years ago. This period was also characterized by the increased size of the brain and therefore the ability to think, unlike the other animals. The hominids during the period migrated from the tropics and moved to the equator where conditions were favourable. In the development of the intellect and communication skills in man, the environment contributed significantly to this endeavour. In the environment, a stimulus was present for a man to elicit a given response. The development of language as a tool of communication came about as a result of the interaction of man with the environment. Before the development of language man used to give gestures so as to communicate with other people. (Handwerker, 313 1989) Archaeological studies have revealed how man interacted with the ever-changing environment in search of food and surviving in the physical world. Interaction between the hominid and the environment was characterized by feedback. It is the feedback that contributed towards the development of the cognitive system especially through visualization of all that took place in the environment. During this time the sense played a very significant role. It is through the use of senses that the hominids interacted with the environment. as feedback came from the environment internalization was done through the brains and thus facilitating the development of the cognitive aspect of the hominids. Man as an intelligent form of life engaged in processes and experiences that led to more intelligence. This improvement was in the way he gained access to forms of energy and how he utilized nutrients within the environment. Hominid knowledge came from the application of concept building cognitive processes to the external stimuli he came into contact with. Through the sensory system of the body, the perceptions are built up in the mind. As a result of material and cultural gains in the environment, human knowledge reinforces itself by building on its products. Many views have been put forward trying to explain the origin of hominid intelligence for instance according to a scientist called Joshua Lederberg it is an intraspecific competition that was responsible for the development of hominid intelligence. As a result of this, he argued that war needed very quick interventions so as to prevent further complications. To plan for the competition the body requires some kind of verbal competition which is very inventive. This kind of scenario is mostly found in young animals that are not adapted to suffer from the consequences of their actions. Territorial behaviour is very common in social animal’s men and hyena being examples of such animals. Territories are a form of conflict formed between social animals so as to compete for scarce available resources. (Jerison, 1973) Therefore communication came in a better way of allocating the resources amongst the hominids. Before communication and intelligence came about, there must have been some stimuli behind the drive to communicate. According to J Desmond Clark University of California, the demands for communication were the forces behind the need for the ea