This small tree, the jicaro (officially, Crescentia alata), grows cannon-ball sized fruits, that protect the seeds within but make it hard to disperse them. Horses and humans that crack it open can eat the seeds, thus helping solve this tree’s reproductive issues. Some scientist hypothesize that before there were domesticated horses, there existed a now extinct, elephant-like animal that did the job of cracking the fruit open.
In Honduras, El Salvador and Nicaragua, people make a drink out of the high-protein seeds, called semilla de jicaro.
Source of enlightenment–this Wikipedia article