The fact whether or not we have one common ancestor is perhaps the biggest unanswered question in biology. The answer is yes. We have one common ancestor: Self. Self is the origin of itself. All diversity is Self-desired, Self-created and Self-perceived out of a two-fold desire: 1) the desire not to feel alone/lonely 2) the desire for companionship. So the answer to the question - do you believe we are all related and connected in some way or another? - is that there is in reality only one self embracing itself. The meaning- and purpose of life, of self, is companionship, friendship, love.
~ Wald Wassermann