Scientists figured out why humans have big brains

Humans are the smartest living creatures on Earth. Well, maybe not "smart" entirely, but we're at least the most advanced creatures when it comes to brain development, and scientists really want to know why. Evolution, sure, but the actual nuts and bolts of why our brains develop differently than those of other great apes and chimpanzees have been a mystery for a very long time. Now, new research published in the journal Cell offers the first real insights into how human brain growth is differen...