Human evolution is often told as a tidy story of adaptation, yet some of our most familiar body parts still defy straightforward explanation. From the jut of the human chin to the curve of the outer ...

Evolution has given humans countless unique features, but one body part stands out as an unsolved puzzle: the human chin. While scientists can often trace the development of various organs and ...

The growing recognition that the human body functions as an integrated, communicative whole, rather than a collection of isolated organs, is a welcome and important development. This systems-level ...