Skinny cereals
One of the best examples of plant breeding is the case of maize (Zea mays). This plant has experienced so many modifications throughout history that its ancestor looks barely like the contemporary. The predecessor, called teosinte \cite{maize}, is a grass that last year was in the public eye for plaguing the fields of Aragón (Spain). In fact, it is well known in the United States for invading cornfields. Curious, isn’t it? Corn’s great-grandfather is occupying its very territories. The teosinte fruits are nothing like the big, fleshy, yellow kernels we all recognize. They have a completely different appearance. Teosinte has a Mesoamerican origin and indigenous peoples inhabiting those lands worked together to produce improved varieties. They chose the best kernels and hybridized the selected plants. With time and patience, they obtained the modern corn, giving us delicious tacos, nachos, popcorn, and more.