September 10, 2005

Duh: Studies Hint Our Brains May Still Be 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.

No comments: