Posted on 05/08/2011 7:55:52 AM PDT by wildbill
A new study of DNA suggests North America was originally populated by just a few dozen people who crossed a land bridge from Asia during the last Ice Age.
About 14,000 years ago, humans crossed the Bering land bridge from Siberia to North America, most experts agree. But just how many intrepid explorers were involved in spawning subsequent populations has not been known.
"The estimated effective size of the founding population for the New World is about 70 individuals," said Jody Hey, a professor of genetics at Rutgers University.
(Excerpt) Read more at livescience.com ...
They were the first. I believe there were others.
Wow. 70 people “settled” an entire continent? Talk about elbow room.
Oh, yeah. Garmin.
You are right...They even got as far as the tip of South America in a few short years.
Amazing stuff...I mean crap!!!!
Are our tax dollars being used for this “study”?
Not all of us are willing to assume that the western hemisphere was settled once from Asia alone.
The geneticist’s study says there are only 70 separate DNA strains in the bloodlines of all AMerinds.
If some folks can believe that everyone is descended from only two people, I don’t see why a scientific finding of 70 DNA lines in N. America isn’t possible.
It’s probably reasonably accurate. It take as little as 400 years to fill the continent.
Agreed... some of the East Coast indians suggest European ancestory. The Cherokee language is actually very similar to Greek and some ancient Hebrew artifacts have been found in obscure places like Oklahoma... I do believe some Asiana came across the land bridge as suggested, but do not believe Lied Ericson was the next to make it here.
Hey Prof...who settled Tierra del Fuego about the same time? Hmmm? .
Oops, Lief Ericson. Darn autocorrect...
Jody Hey here seems to assume the originals were Asian rather than Michael Collins hypothesis of European origins.
Law of exponents ensures that people reproduce quickly.
If it was 70 people, half of them women, and each woman averaged 5 kids who could make it to adulthood, of which about half were female,..., it would only take about 500 years to go from 70 people to 50 million people.
Do we have to “give it back”?
Midnight Oil - Beds are Burning
http://www.youtube.com/watch?v=10BbpGKLXqk
Invasive species don’t usually need to do much but what they normally do - and the cold calculus expands them exponentially over the new territory.
But yes, good times, no competition from the #1 competition humans have faced throughout their time on Earth - other humans.
¿Hay sólo tres carros?
Have the “Experts” ever been wrong yet?
/sarcasm
What percentage of women were able to have 5 kids survive into adulthood 20,000 years ago without the benefit of modern medicine. As recently as Medieval Europe as many as half of childbirths resulted in death of the mother, not to mention the frequency in which the child itself died.
Can you imagine what the South Americans are thinking?
"D'oh! And all we had to do was swim across some stupid canal!"
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