It is a small tree of wutong family, native to tropical America, Typical "old stem flowering, old stem fruiting" plants The formation of this phenomenon is related to the unique environment of tropical rainforests. Tropical rainforests have a large number of species, and the trees in the middle and lower layers cannot compete for sunlight with the upper plants, making it impossible for flowers to occupy the top of the branches. They open the flowers on old branches and trunks, which are more open and easily discovered and visited by insects. This provides more opportunities for pollination and is beneficial for reproduction. In addition, their sturdy trunk can also bear the weight of the fruit Pressure. In order to survive, it is necessary to seize the opportunity to compete. The flowering and fruiting of old stems is a biological phenomenon formed by plants gradually adapting to their living environment during evolution. Cocoa fruit is an important raw material for making beverages and chocolate candy. Cocoa beans are selected, dried, ground, heated, stirred, matured, cooled, and molded to form a perfect black and shiny chocolate. The cocoa trees close to us now have green fruits, indicating that they are young and in an explosive growth period. After a while, the color will deepen. Once they turn egg yellow, they can be picked and made into chocolate.