The human brain has been shrinking – and no-one quite knows whyThe human brain has been shrinking – and no-one quite knows why - BBC.com
bbc.comSubmitted by bbcnews6954 in science
The brains of modern humans are around 13% smaller than those of Homo sapiens who lived 100,000 years ago. Is it because of the changing climate, or some of the skills we've picked up?