<P>Ugo Bastolla is researcher in the laboratory of bioinformatics of the<BR>Centro de Astrobiologia in Madrid (Spain), on leave to the Centro de<BR>Biologia Molecular of the Spanish CSIC. Since his degree in physics<BR>with Luca Peliti he has always been interested in biological topics, <BR>above all evolution. He got is PhD in Rome with Giorgio Parisi working<BR>on disordered dynamical systems inspired to biology and was postdoc in<BR>Julich (Germany) with Peter Grassberger, studying statistical mechanical<BR>models of polymers, in Berlin (Germa...