Tehuacán-Cuicatlán Valley: originary habitat of Mesoamerica

Tehuacán-Cuicatlán Valley, part of the Mesoamerican region, is the arid or semi-arid zone with the richest biodiversity in all of North America. Consisting of three components, Zapotitlán-Cuicatlán, San Juan Raya and Purrón, it is one of the main centres of…