Raúl Andrés Perezgrovas Garza: Veterinarian Zootechnician from UNAM-CU, 1976. MSc Animal Science (Zootechnics) from Iowa State University, USA, 1981. PhD in Agroecology and Sustainable Development from the University of London, UK, 2001. Full-time Principal Researcher at the Instituto de Estudios Indígenas, Universidad Autónoma de Chiapas. Author and co-author of 150 articles in refereed and indexed journals and 60 book chapters. Member of the National Research System, awarded with diferent distinctions and prizes.