Remember the 40,000 year-old Denisova finger bone that yielded sufficient DNA to speculate that this ancient human, like Neanderthals, interbred with our ancestors? The bone was found in the Altai mountains (Siberia) and is presumed to be a new, now extinct, species of human. A novel technique of DNA sequencing that allows better use of the degraded, single stranded DNA of fossil bones has now be…