It's not clear why—medicine? cars? supermarkets?—but the skulls of white Americans, and perhaps of other races and nationalities, have become slightly taller and roomier, according to new forensic research.More evidence that humans are still evolving.
New measurements of hundreds of skulls of white Americans born between 1825 and 1985 suggest that their typical noggin height has grown by about a third of an inch (eight millimeters).
It may not sound like much, but the growth translates to roughly a tennis ball's worth of new brain room.
Sunday, June 10, 2012
Brains getting bigger
National Geographic News reports: