A basis for objective morality Yes I am aware that just because it exists in nature that does not make that something good - perhaps it's the paradigm itself I'm trying to get at. What I mean is, I don't necessarily subscribe to the 'you cannot get an ought from an is'. In boiling down every facet of existence (as it pertains to life in this context) it seems the most primitive thing that matters by definition is the bare minimum required for a life to exist. Life by definition wants to live. There is no life otherwise and no discussion of anything.
For example, I believe that implicit within facts are values. From this paradigm, there is no gap between fact and value. We do not merely percieve a fact. Even in our most unlearned state, we filter that fact through biological and mental apparatus that we have inherited from millions of years of evolution, and that fact holds a relevance for us beyond it's mere 'is'ness - the two are inseparable.
Now I am still working through refining my thoughts in the above paragraph, but I think the is/ought problem, or the naturalistic fallacy, are unassailable gaps perhaps from one paradigm, but not from another which is just as viable.