Rolando Barahona Rosales received a BSc degree in Animal Sciences in 1992, an MSc in Ruminant Nutrition from Kansas State University in 1995, and a PhD degree in Agriculture from the University of Reading in 1999. He worked as a researcher at Escuela Agricola Panamericana El Zamorano, Honduras (2000–2002). In 2002, he moved to Corporación Colombiana De Investigación Agropecuaria – Corpoica, Colombia, and then, in 2007, he moved to the Universidad Nacional De Colombia, Medellín, where he currently acts as full professor in the Animal Sciences Department. His research topics mainly include ruminant nutrition, carbon footprint in livestock production systems, nutritional constraints of grazing systems in the tropics, and environmental impact of animal production systems.