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Hi All,

Well we all remember the Thor Heyerdahl (if we're not too old or too young, http://en.wikipedia.org/wiki/Thor_Heyerdahl) and it may turn out that his "crackpot" notions weren't so crackpot after all.  New genetic evidence suggests that sweet potato genes were transiting the Pacific prior to european transit and trade, which would breathe new life into a long dismissed and forgotten theory.

I'm pretty sure you can get to this link without a subscription, etc.

http://news.sciencemag.org/sciencenow/2013/01/clues-to-prehistoric-human-explo.html#disqus_thread 


It's a fascinating story.
C

Charles Carlson
Senior Scientist
exploratorium
3601 Lyon St.
San Francisco, CA 94123
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Tel:   415-528-4319
Fax:  415-885-6011
Skype: sciskypecharlie
MobileMe: [log in to unmask]
Twitter: charliec53
http://blogs.exploratorium.edu/whyintercept/

















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