RE: Humans in S America 22000 Years Ago?
May 13, 2013 at 7:10 pm
(This post was last modified: May 13, 2013 at 7:24 pm by The Grand Nudger.)
(May 13, 2013 at 6:25 pm)Chuck Wrote: did they? I had no idea there were marsupials in Africa.
But anyway, marsupial as a lineage considerably predated the time when rifting that separated Africa and South America was complete. So it seems conceivable their ancesters simply walked on dry land across the future mid-atlantic ridge before the water came in.
Last common ancester between old and new world monkeys post dated the final split between africa and South America by some margin. To get across they must have swam, rafted, or walked on water.
Yeah, africa, europe, asia, s. america.....but amusingly, they appear to have first arisen in n. america, then beginning their journey to every inhabitable rock by the eocene (via antarctica, so it would seem) reaching australia by the oligocene, before being isolated in the miocene.
Little bastards where on the move, eh?
Speaking of their trip, the origin of new world monkeys actually does fall within the range of the antarctic route being open and it is offered as an alternative to listlessly floating. Mammals have to eat and drink pretty frequently. Even mice starve crossing the atlantic on ships when they don't have access to sufficient food and freshwater. If, and this is a big if, human remains are pushed back into this window it offers us a coastal trip by foot or by sea, rather than a deep blue hardcore ocean crossing adventure from either the north -or- the south. Not that we couldn't have done it, just saying. Trouble is, existent genetics describes a southward population, not a northward thrust. So, marsupials and monkeys could have and likely did make use of it, but for people, the bridge is DOA as a point of crossing, in all likelihood. It's the same problem for the solutrean hyp - except that the sol explanation has some tools associated with it. Ultimately, we'd need to find populations of people either way which we haven't yet found - though the folks who present this sort of stuff have a good idea of where to look (and like min said, it's expensive).
I am the Infantry. I am my country’s strength in war, her deterrent in peace. I am the heart of the fight… wherever, whenever. I carry America’s faith and honor against her enemies. I am the Queen of Battle. I am what my country expects me to be, the best trained Soldier in the world. In the race for victory, I am swift, determined, and courageous, armed with a fierce will to win. Never will I fail my country’s trust. Always I fight on…through the foe, to the objective, to triumph overall. If necessary, I will fight to my death. By my steadfast courage, I have won more than 200 years of freedom. I yield not to weakness, to hunger, to cowardice, to fatigue, to superior odds, For I am mentally tough, physically strong, and morally straight. I forsake not, my country, my mission, my comrades, my sacred duty. I am relentless. I am always there, now and forever. I AM THE INFANTRY! FOLLOW ME!
