Monarchs Resting (IMAGE) University of Guelph Caption Monarch butterflies are plentiful in Canada and the U.S. each spring. Here, two monarchs are resting. New research from the U of Guelph reveals details of their migration journey from Mexico north. Credit University of Guelph - Jessica Linton Usage Restrictions This photo may be used in conjunction with any story relating to this release. 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.