It is undeniable that there is a tendency in living organisms to evolve from lower to higher states of complexity. Thus, complex life evolved from self-replicating molecules to sophisticated cellular mechanisms to multicellular organisms and populations of organisms, and this trend to more complex forms does not seem to stop. Although the theory of Darwinian evolution explains how organisms adapt to their environment, fails when trying to explain why complexity is always raising. All levels of complexity coexist in our planet, so, it is naive to afirm that more complex forms of life are...