Mini Lab Grown Brains Reveal When Humans Stopped Being Apes
We know that the human brain has dramatically expanded in size over the past 6m years. Humans are in fact the mammals with the largest brain relative to body size. But which specific evolutionary genetic changes enabled larger and more complex brains has long remained a bit of a mystery. Now a new study, published in Nature, offers clues. One important reason why it has been so hard to study primate brain development is that, until relatively recently, scientists did not have access to living, developing brain tissue....