Pradeep Sharma, University of Houston (IMAGE) University of Houston Caption Research led by Pradeep Sharma, chairman of the Department of Mechanical Engineering at the University of Houston, offers an explanation for how some species of snake convert the heat from organisms that are warmer than their ambient surroundings into electrical signals, allowing them to "see" in the dark. Credit University of Houston 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.