If you consider the afterlife a subject of the imagination and toss about the word, "species." I suggest you do a deeper study into the subjects of evolution, morality and spirituality. Such subjects as these go far beyond the idea of just survival of a species, and many scientists are not even sure why or how humans have a moral code or look out beyond the stars. They do not fully understand why man creates such things as complex sciences and philosophies. These very acts are not important to the survival of any animal... yet man is different. And this says nothing of the atheist scientists who admit that the universe looks as if it were constructed by some higher and very intelligent being. Although as atheists, they cannot explain why the universe has this appearance... Thus, your remark swims with many flaws and gaps in the theory it seems to present.