James Nestor is fascinated by the shape of the human skull — or more specifically, how it has changed over time. When writing his latest book, Breath, published by Penguin, James looked through the Morton Collection, a collection of human skulls housed in the basement of the University of Pennsylvania Museum of Archaeology and Anthropology, to learn how humans have evolved across centuries. What he found surprised him.
“All of our ancestors from around 300 to 400 years ago, and back to a million years ago and longer, all had perfect teeth. And
