 In Colorado Corner, Mexican Forecastle, Coahuila, paleontólogos work in the rescue and fossil restoration of dinosaurios that lived 70 million ago years, the UNAM heads a series of scientific researches in the border of the state of Yucatan, in cooperation with educative institutions of EU and Canada, around the crater produced by the impact of a meteorite, that reach between 170 and 300 kilometers of diameter, known like Chicxulub.