Hieroglyphs

I found these enigmatic hieroglyphs waiting for me on the way into work this morning. They reminded me just a little bit of the paleolithic handprints left left on cave walls by our distant ancestors, tens of thousands of years ago. Prehistorians think these messages from the dawn of human history were made by sucking up an all-natural-ingredient Dulux antecedent and then blowing this over outstretched digits. Perhaps they were artists' signatures, or just a mark in time to say 'I was here'.
Prehistory is a fascinating and almost disturbing concept. Why? Because recorded history does not date much further back than a couple of thousand years BC: it essentially means 'since we figured out how to write things down'. And yet we left Africa (via the Gulf of Grief, in what is now Djibouti ) probably 65,000 years ago. And that is after evolving in Africa for tens of thousands of years before that! 60,000+ years is an awfully long time for the activities of anatomically modern human beings to be shrouded in mystery and conjecture...