A great argument for Bushlessness indeed, D. thanks.

In scientific circles, finally a reasonable explaantion: evolution. From Newsday:

Is brain still developing?
Discovery of two gene variations have some scientists saying that human think tank will continue to evolve

BY JAMIE TALAN
STAFF WRITER

September 8, 2005, 8:45 PM EDT


Scientists have discovered a gene variation, perhaps involved in brain size, that showed up only 6,000 years ago -- a mere blink of the eye in evolutionary time.

...
Analyzing DNA samples from individuals throughout the world, they identified two genetic varieties that are unique to humans. One called abnormal spindle-like microcephaly, or ASPM, first appeared 6,000 years and is now found in 30 percent of the population. The other, called microcephalin, evolved about 37,000 years ago and has spread to more than 70 percent of the population.

...
While the first modern humans date back 200,000 years ago, our closest human ancestors, ones with shared human behavior, probably evolved around 40,000 years ago, Harpending said.

People with damage to either of these two genes -- microencephalin and ASPM -- have smaller brains, equal in size to chimp brains. They also suffer from impaired cognitive abilities and have severe language problems. (emphasis added).

"We tend to think that we have reached the pinnacle of evolution," Lahn said. "Given these findings, we can say that the human brain is still changing -- and rather rapidly.

"Our brain will continue to change. In 10,000 years, the biological processes may be very different than they are today."

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All he needs is a transplant of the microencephalin gene. Nothing a little stem cell work couldn't handle....oh...well...oops...never mind! :D


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