Chris Adami on the Evolution of Risk (IMAGE) Michigan State University Caption When studying the evolution of risk aversion, Michigan State University researchers found that it is in our nature -- traced back to the earliest humans -- to take the safe bet when stakes are high, such as whether or not we will mate. Credit Photo courtesy of MSU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.