"Where's the mystery? Moral behavior is conducive to survival and happiness. Why wouldn't it exist?"<quoted text>Disagree. Fallacy of scale.
KJV wrote, ""Whence morality?... Two and a half millennia of debate have, however, failed to produce a satisfactory answer. So now it is time for someone else to have a go. Perhaps [biologists] can eventually do what philosophers have never managed, and explain moral behavior in an intellectually satisfying way.""
Not correct. We know where morals come from. Basic urges, such as protecting our young, are instinctual. And many other behaviors conducive to survival in man and beast alike are also gifts of evolution.
From these roots, human culture takes over. Here's how we do it today, so called rational ethics :
People decide how they would like to live. Most want to be happy as they understand it, which means that they want what it takes to achieve that state. They want to feel safe, to have enough, to feel loved, to express themselves, and to have the opportunity to pursue those things that make them happy. That means having leisure time, good health, sufficient means, the wisdom to pursue worthy the goals, and the skills to achieve them.
We've learned from our own lives and from reading about the past that most of us want those things. And we understand that the best way to achieve this is cooperatively, with rules of living that maximize opportunities to achieve happiness.
How should we agree to proceed to achieve a society with the greatest opportunity to pursue happiness for the greatest number? How shall we agree to behave to create that world?
We decide which values embody those goals - kindness, tolerance, freedom, peace, integrity, etc. Once we have identified our goals, we must decide which rules facilitate them. Some of these rules will be laws, such as 'don't kill or steal' and some are customs and traditions, such as sharing and cheerfulness.
Over time, we apply a science of practical ethics, applying reason and compassion to tweak the goals and the rules to support them, and observing their effects on our world. Sometimes, we make a mistake, as with alcohol prohibition. Our rule,the Eighteenth Amendment, was paradoxically counterproductive, and inadvertently INCREASED total misery. So we tweaked the rule back into oblivion with the Twenty-First Amendment.
Where's the mystery? Moral behavior is conducive to survival and happiness. Why wouldn't it exist?
Because if indeed evolution was real even though you may believe you can't have one with out the other. The odds of the top dog on the planet exhibiting moral traits are very high against it and not normal in nature.
The human eye
This is not evolution it's creation.