Nebraska chemists (IMAGE) University of Nebraska-Lincoln Caption Nebraska chemists James Checco (center), Baba Yussif (right) and Cole Blasing have found that a natural, ultra-minor alteration to a molecule can dictate which neuron receptors a neurotransmitter will activate. The team discovered the phenomenon in a species of sea slug being held by Checco, though the findings should apply to a range of animals — potentially even humans. Credit Craig Chandler | University of Nebraska–Lincoln Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.