Have pollen. Must travel. Over 80% of the world’s flowering plants must reproduce in order to produce new flowers, according to the U.S. Forest Service. This process involves the transfer of pollen between plants by wind, water or insects called pollinators — including bumblebees. In a new study, researchers at the University of Missouri discovered … More ‘Bee’ thankful for the evolution of pollen Researchers discover wildflower’s spiny pollen adapts to help plants reproduce.