Simon (2 of 2) (IMAGE) University of Exeter Caption The hazelnuts were placed in the wells diagonally across from each other, meaning that the least efficient way for the squirrels to locate the food was to check each well in a clockwise or counter-clockwise sequence, and the most effective was an 'integrative' approach where squirrels checked only the two diagonal wells that contained food, ignoring the two empty wells. Credit Pizza Ka Yee Chow Usage Restrictions Credit Pizza Ka Yee Chow 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.