Many events and progressive changes have consolidated human beings, with some degree of intelligence, as a successful species. If this has happened by mere fact of chance, as a result of a process of genetic selection or simply as a superior development within the evolution of certain species, not will know with full guarantees of accuracy, but certainly indisputable truly is that the basic of a developed intelligence was what today we call as "reptilian brain" or "reptilian brain". He is the architect of control the basic functions of the survival and the instinctive response of all, without which the necessary conditions had not is given that they happened further steps towards a complex intelligence capable of achieving further progress. The " reptilian brain " is inheritance of our ancestors reptiles. Is a brain functional, us located in the pure present, without last and without future, by what is unable of learn or anticipate, is responsible of keep it life, not thinks or feels emotions, is pure impulsivity and by this is capable also of commit them greater atrocities. "Is the response by the survival: eat, drink, temperature body, sex, protection.
"Muttaburrasaurus, congener our reptilian ancestors, equipped with basic primary minds or reptilian dinosaur".