Congratulations. You have made the first non-English deviation that I have favourited. From parallels to the English language, the little bit I know of Spanish, and the context of my web history, you have gotten a point across that I've been meaning to get across for a very long time; evolution is a tree, not a ladder. No species can really be called "higher" or "lower" if it's alive today. All have had exactly the same amount of time to evolve. We speak of the monotremes as the "lower mammals", but as you've shown very well, they could have just as easily drawn a tree like this, with eggless mammals "lower" than the monotremes. Well done, my good man. Well done.