Pollen Grains from Common Plants (image) Washington University in St. Louis Caption Both plants and insects depend on insect pollination but so do people. Without insect pollination, we would have to survive on a monotonous diet limited to wind-pollinated grasses, such as wheat and corn. Credit Public domain image (created by the Dartmouth Electron Microscope Facility) Usage Restrictions http://remf.dartmouth.edu/imagesindex.html These images are in the public domain. Do with them what you will. 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.