Fieldwork (IMAGE) Stockholm University Caption Loke von Schmalensee translocates lab-grown rapeseed plants near a temperature logger to investigate the butterflies’ temperature preferences in nature. Credit Pauline Caillault Usage Restrictions May be used in connection to the related fieldwork License Original 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.