This shows the evolution of the tassel and ears of corn. Teosinte is the wild ancestor of modern corn, characterized by a structure that resembles grass with small,hard kernels (seeds) however only of a small amount. The middle part shows intermediates with evolving traits such as more prominent ears and tassels, larger seeds. Finally, modern corn that has undergone extensive selective breeding features a robust, upright structure with larger ears, tassles and its kernels are packed tightly together.