Cocoa bean grow a variety of fruit-bearing shade trees to supplement their income to help cope with the volatile cocoa prices. Although cocoa has been adapted to grow under a dense rainforest canopy, agroforestry does not significantly further enhance cocoa productivity. Cocoa bean The cocoa bean or simply cocoa (), which is also called the cacao bean or cacao (), is the dried and fully fermented seed of "Theobroma cacao", from which cocoa solids (a mixture of nonfat substances) and cocoa butter (the fat) can be extracted. Cocoa beans are the basis of the sweet food preparation called chocolate, and of such
Theobroma cacao that surrounds the beans, which is eaten as a snack and fermented into a mildly alcoholic beverage. Using the DNA sequences and comparing them with data derived from climate models and the known conditions suitable for cacao, one study refined the view of domestication, linking the area of greatest cacao genetic diversity to a bean-shaped area that encompasses Ecuador, the border between Brazil and Peru and the southern part of the Colombian-Brazilian border. Climate models indicate that at the peak of the last ice age 21,000 years ago, when habitat suitable for cacao was at its most reduced, this area