A new study shows cultural evolution helped humans expand across Earth far faster than genetic change alone could achieve.

My colleague and I have published a new study of cactus flowers which may help explain the conundrum. For more than a century ...

Most people know only two things about the appendix: You don’t need it – and if it bursts, you need surgery fast. That basic ...

Nobody likes to wait, and we are willing to pay to avoid it. Expedited shipping, fast food and video streaming are all profitable because they reduce or eliminate that wait. You can test this by ...

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 ...

CHAMPAIGN, Ill. Life did not begin with one primordial cell. Instead, there were initially at least three simple types of loosely constructed cellular organizations. They swam in a pool of genes, ...