The problem with “derived groups”

Here I am, again, fighting against the nefarious scala naturae. No surprises here because, indeed, this is the subject of most of my book. I know that this is an uphill struggle against something that will hardly disappear, once for all, from the way we view and organize the living world. However, we must try … Continue reading


Who came first?

One of the things that interest me most in education today, and specifically about education in evolutionary biology, is trying to diminish or even to abolish the adverse effects of this terrible and nefarious conception called scala naturae,both in our culture and in our way of thinking. You will see me constantly dealing with this topic here in the blog, the infamous scala, “the great chain of being”. Continue reading