When thinking of the natural world — science if you will — we rarely tie morality into it. They should be mutually exclusive, because science is the study of the natural world, whereas morality is considered a construct invented by man (or God depending on your beliefs) in order to create civil society.
I watched a video where a philosopher contorted herself into a mental pretzel while trying to describe how some "early fetuses" have no moral status when other "early fetuses" do, and as such abortion is not a moral issue.
Aside: This post isn't about abortion, per se, but about how biological knowledge can and should, in many circumstances, define our morality.
Nowhere in the video did the philosopher or the two men interviewing her bring up the biology of said fetuses and how one — scientifically speaking — has moral status, and therefore a right to be born, when another doesn't. You can find the video here:
This in turn reminded me of another conversation (paraphrased, because it happened a while ago) when someone argued that biology and laws have no bearing on each other, especially when it comes to human rights.
I said (again paraphrased), "Biology has everything to do with it. For instance, we don't give monkeys or dogs the same rights as humans. Why? Because they're not biologically human."
Humans have known that almost instinctively for thousands of years, even though they had no idea what a cell looked like, let alone a DNA strand that more definitively proves the differences between all species, whether animal, plant, or other.
I'll even wager most of our morals depend on our understanding of the natural world. They should be, and always remain, intrinsically linked.
A few months ago, I read portions of Leviticus. Many find it dry and boring, because it contains laws about holiness, ritual cleanliness, family life, and a slew of others.
What I found most interesting is many of the laws, especially with regard to sanitation, we use and take for granted today. The difference is, we do those things not for religious or moral reasons, but because we understand the science of how diseases spread.
If we choose to ignore biology, and try to make a "moral" stance based on how we think our biology should be instead of what it is, we do so at our own peril.
That society is trying to erase what it means to be human, man, woman, boy and girl, became abundantly clear with the reaction to the release of the so-called "Google memo." You can find the text of the memo below. I encourage you to read it, and not depend on my opinion of it (or anyone else for that matter, including the writer of the linked article):
Mr. James Damore (who wrote the memo) made a valid point — which many scientists have proven time and again — that men and women are different. Men — on average — react one way to a particular situation, and women — on average — react another way. One isn't necessarily better or worse than the other. It should show, however, that men and women complement each other. Where one is weak, the other is strong, and vice-versa. When we work together as partners with different roles to play — other than having and raising children — we can accomplish great things.
In short, trying to make women and men, and boys and girls the same, we both ignore and destroy what makes each beautiful, unique, and strong. Morally, we should acknowledge, encourage, and embrace our biological differences, because if we don't, we will, in the end, destroy each other and ourselves.