Perhaps DNA testing will bring us closer to what we don't know. Which is a lot. ;-D
“Buckminster Fuller may have been on to something when he created his Dymaxion Air-Ocean World Map ... The Fuller Projection.”
http://www.zoologic.ch/dymaxion/SatMapPoster.jpg
‘The Dymaxion Map is the only flat map of the entire surface of the earth that reveals our planet as it really is an island in one ocean without any visible distortion of the relative shapes and sizes of the land areas, and without splitting any continents.’
http://www.zoologic.ch/dymaxion/dymaxion.htm
Just for a humorous aside, I was present at the replicant landing of the hide boat, "St. Brendan" when it landed on its journey from Greenland to Fogo Island, Newfoundland in the late 70s ( 1979 or 1980, I forget.)
THe boat was about 30 feet long with hides stretched over a wood frame. The three men abopard were scarlet from exposure, and they had full wet suits on.
I have no idea how they managed to do it , just by square sail. She was towed in the last few miles, caught in the doldrum of no landward breeze that day, with a serious storm in the offing.