I'm currently reading Food of the Gods which has to do with the evolution of conciousness through psilocybin mushrooms.

It mentions that as the population of a species increases there is less room for a mutation to be successful. That means because of how widespread we are our physical evolution is slowing down severely, possibly even coming to a halt.

Our ideas keep moving forward though, "evolving" if you could apply the word that way. And the rate at which our ideas, culture, and mind are "evolving" is increasing at a very fast rate as we become more and more dominant.

If a baby was born with two heads ((and this has happened even in humans)) and was more successful then a baby with one head, our society would still be able to halt it's continuation because we don't like two headed people.

I don't know alot about evolution as a whole, but that's what I've learned thus far from Food of the Gods. And keep in mind it's all theory. At least until I disprove the existance of god to the world in 2021.