Flora refers to plant species, while fauna is the term used to categorize animals. Although flora and fauna exist in almost the entire world, each set of plant and animal species responds to specific characteristics according to the geographical and climatic conditions of the region in which they develop, therefore, they are organisms that have evolved and adapted to their environment.

The Plan of Ayutla (Ayutla Plan) was a political pronouncement made by liberal leaders against the dictatorship of Mexican President Antonio López de Santa Anna. It was proclaimed on March 1, 1854 in the city of Ayutla, State of Guerrero, by Florencio Villarreal, Ignacio Comonfort and Juan N. Álvarez. He received the support of Benito Juárez, Melchor Ocampo, Ponciano Arriaga, and other liberals exiled by Santa Anna, who had gone into exile in the United States.