Pollination in the Himalayas (IMAGE) National Centre for Biological Sciences Caption Hoverfly pollinators visited buttercups in Thangu Valley, North Sikkim, one of the trans-continental sites chosen. Credit Shannon Olsson Usage Restrictions credit to NCBS and the author. 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.