This month, our cover portrays a trifecta of pollinators and the different flowers from which they feed. Centrally, you see a hawkmoth (left) and a hummingbird (right), with a bee watching the proceedings from above. They are very different organisms and all three pollinate different species of Petunia. The color, scent and morphology of the flowers all contribute to attracting the respective pollinators. The evolution of various floral traits dictates pollinator preference, leading to diversity and speciation of the plants.