If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have ...

The human body is a machine whose many parts—from the microscopic details of our cells to our limbs, eyes, liver and brain—have been assembled in fits and starts over the 4 billion years of our ...

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 ...

James Pampush devoted five years and his Ph.D. dissertation to one question: Why do homo sapiens have chins, when all of our evolutionary relatives don't? He tells NPR's Robert Siegel about "the ...

Famous chins: John Travolta and Oprah Winfrey. James Pampush, an evolutionary anthropologist at Duke University, dedicated the majority of this decade studying why humans have chins. GEORGE BURNS AP ...

The human body is a machine whose many parts – from the microscopic details of our cells to our limbs, eyes, liver and brain – have been assembled in fits and starts over the four billion years of our ...

Max Telford does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...