Posted on 10/25/2007 2:48:27 PM PDT by decimon
Boffo beringia ping.
Bump for later.
Ripan is one of the students who came out of Dave Smith's lab at U.C. Davis. Smith and these graduates and their students are doing some of the most interesting DNA work around!
A very interesting article. I have always believed North American Indians had an appearance that resembled Asian ancestry, as opposed to European/Middle Eastern.
Yeah, the graphics are super. But it doesn’t tell the whole story.
Forty thousand years ago humans migrated into Australia. So, how did they get there without boats?
Australia hasn’t been attached to any Asian continental landmasses nor to the large island to its north, modern day New Guinea. Yet humans and domesticated dogs arrived in Australia 40,000 years ago. They obviously arrived on boats of some kind.
During these past 40,000 years the sea level world-wide was between 600 to 400 feet lower than it is today. Look on any detailed submarine topographical map (one labeled with depths) and you’ll note how much of the mid-Atlantic ridge and other seamounts would have been bare land. An astonishingly large number.
If humans could have made it to Australia by boat 40,000 years ago, why not island hop across the Atlantic from west Africa? Is that why the boats made of reeds used on Lake Titicaca look almost identical to boats made of reeds depicted in ancient Egyptian tombs?
Ice Age Ends Smashingly: Did A Comet Blow Up Over Eastern Canada? (Carolina Bays)
Of interest?
So, like, let me get this straight...
There was a way to walk between the two continents? And the weather was cold enough that ice was walkable between the two countries? Then it was warm enough for people to actually live in those areas? But it was cold enough to walk?
And none of this was caused by SUVs and coal-fired power plants?
During the glacial period the sea levels were much lower, perhaps by some 400 feet. That left a lot more land available for walking.
It was cold, but areas that are now under water were then dry.
That’s a pretty cool map. Except the connection between New Guinea and Australia never existed. See “Guns, Germs, and Steel” by Jared Diamond. It’s his thesis, not mine.
I read it. It was a little to PC for me.
"Except the connection between New Guinea and Australia never existed."
I agree.
I wish I could remember where I read this information, but there is a small percentage, just a single digit, of mitochondrean DNA among South American mummies dated pre-Columbus that is neither Asian nor Polynesian, but Mediterranean in origin.
I'm not aware of any and if you locate where you read that I'd sure like to read it too.
A, B, C, D and X are the 'known' haplogroups in the Americas.
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