I am currently a research and professor at Pontifícia Universidade Católica de Minas Gerais, in the beautiful Belo Horizonte city, Minas Gerais Brazil. I have a deep interest in social relationships of lizards. Hence I am seeking to understand the function of aggression in Tropidurus lizards; how the evolution of communication in Tropidurus drives their aggressive behaviour, and also in the economics of flight behaviour.  Along the time the financial support from many Brazilian Governmental Agencies had permitted the development of the studies of my students, and of mine: