I first came across this highly persuadive compilation of informative research in a very recent book entiltled "Neuroexistentialism: Meaning, Morals, and Purpose in the Age of Neuroscience", in which traditional philosophical/religious claims of human soul and a divine creator are put to rest by scientific research (a bit depressing but there are still humanist perspectives offered)More importantly though, the book dismisses the existentialist view of morality merely being a social construct dependent on the religious promise of a better life in the afterworld, providing much scientific evidence to prove to the contrary that, yes, morality and ethics are very much steeped and enshrouded in biology and evolution. A quote from the editors on the matter: "For one thing, science can explain why we are moral animals, moral to such an extent that no amount of science will end up debunking our hard-wired intuitions about ethics. There’s evidence that altruism, cooperation, compassion and affection are biologically installed, so we don’t require a higher power to force us to consider others’ needs. The very worry about moral foundations is testament to the reality of our moral natures, so learning they are modulated by such humble (or is it noble?) chemicals as oxytocin and vasopressin isn’t likely to render us morally incapacitated".