ta5tyfr3z writes: In a similar vein as a previous Slashdot article, why do we still believe in evolution? or, at least, why do we act as if evolution is incontrovertible and there are no divergent theories within the greater theory of evolution? Does questioning evolution make you anti-science? After all, if we're simply just a series of chemical reactions then applying the 2nd Law of Thermodynamics would mean that we would eventually all evolve into lower lifeforms. And observationally — note, we can't observe evolution on a mass scale in our lifetime -, most mutations (beyond changes in color or size) in large lifeforms seen in nature result in less functioning life forms.