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'Proof' our brains are evolving
University scientists say they have found strong proof that the human brain is still evolving.
By comparing modern man with our ancestors of 37,000 years ago, the Chicago team discovered big changes in two genes linked to brain size.
One of the new variants emerged only 5,800 years ago yet is present in 30% of today's humans, they believe.
This is very short in evolutionary terms, suggesting intense selection pressures, they told Science.
Originally posted by realanswers
"Toasty", you said; "Keeping up with virus evolution is proving to be a real issue for scientists and doctors."
That's nothing but BS. The pharmaceutical companies are out there to make huge amounts of money. The cure for cancer is Vitamin B-17, but for some strange(conspiracy) reason it isn't in any multivitamins or even the vitamin stores themselves. Its not like it is too hard to get. Its found in most all fruit seeds such as the apple, peach, cherry, orange, nectarine and apricot, but of course people usually don't eat the seeds.
Go search for this simple vitamin at: www.vitaminshoppe.com... . It's no where to be found........
The pharmaceutical companies pretty much own the Doctors. They give you expensive prescriptions that seems to only "make you feel better" and never really curing a major problem in a short amount of time. I wouldn't let a doctor(drug dealer) be in charge of my health. Stay healthy simply with good eating habits, natural cures, and give the body the chance to stay healthy under natural situations like it has been done for thousands of years!
[edit on 30-11-2006 by realanswers]
Originally posted by Fiverz
There are more multi-racial/ethnic babies being born... more multi-racial/ethnic couples. What happens when genes from these people start combining and others are tossed away?
Will there ever be a point when the vast majority of people in the US (or the planet for that matter) will be the same ... a mix of a thousand different races and ethnicities?
Most (85%) of our genetic variation is within populations rather than among them, even when different sequences of DNA (or proteins) are examined (Barbujani et al., 1997 ). Statistical divisions of humanity based on different kinds of genetic data do not group people consistently into races (Romualdi, 2002 ).
Templeton... has analyzed DNA from global human populations that reveal the patterns of human evolution over the past one million years. He shows that while there is plenty of genetic variation in humans, most of the variation is individual variation. While between-population variation exists, it is either too small, which is a quantitative variation, or it is not the right type of qualitative variation -- it does not mark historical sublineages of humanity.
Most traits are influenced by separate genes and inherited independently one from another... Someone with brown hair might carry A, B or O blood; sub-Saharan Africans tend to have dark skin but so too do Dravidians from India, Aborigines from Australia, and Melanesians from the South Pacific. Large numbers of West Africans are lactose intolerant as are Japanese, but East Africans aren't. German and Papua New Guinean populations have almost exactly the same frequencies of A, B and O blood... For each trait we can classify people into "races" by that trait, each giving us different and overlapping races depending on the trait selected.
Originally posted by SmileyMan34
Do we sound like nazis for discussing this? That is the stigma that seems to have been placed on genetic modification and unnatural selection.
Originally posted by clearwater
Evolution may just have a few surprises in store for people who like to cite survival as the fittest as their reasoning for eliminating those people who test their tolerance. Mammals were much smaller than dinosaurs... Rats will attack en masse.
Environment determines what types of creatures survive... the furriest in the cold, the best at smelling blood among sharks. Cockroaches exemplify a pinnacle of evolutionary tenacity...
We are not dumb animals, we're sentient creatures and transcending the limits of environment is the name of the game.