Michael Gavin, Colorado State University (IMAGE) Colorado State University Caption 'Agriculture is a link to so many other components for what the world is like today for billions of people,' said senior author Michael Gavin, an associate professor at Colorado State University. 'This begins to help us explain a key moment in human history.' Credit John Eisele/Colorado State University 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.