What are those dog ears doing on my heart? Ancient anatomists named body parts after things they resembled in real life. So you've got a rooster... The hipbone's connected to the leg bone, connected ...

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 ...

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 ...