Are there moral facts?
- The means justify the end.
- Truth is all that matters. Therefore, to lie is morally bad.
Here's an old debate between (professor) Peter Singer and (judge) Richard Posner, where Posner holds this claim that morality is based on these "tenacious moral intuitions" and Singer argues against him: http://www.slate.com/articles/news_and_politics/dialogues/fe...
I would guess that empathy is genetic, and so a moral fact might be that causing undeserved pain to someone with whom you can empathise with is wrong. "Undeserved" of course is wooly at the point of expression.
Fear of death I'd guess to also be genetic, so another moral fact might be that suicide outside of an overriding other moral purpose being wrong might constitute "moral fact", although like the last example, its expression is clouded by other non-fact morals that come in to play.
Incest taboo seems to be genetically expressed too, so you can probably include that.
If it has moral implications, is it a moral fact?