Their service is invaluable. The army of insects and other animals that pollinates the numerous plants of this earth has an essential function. Without these flower visitors, numerous wild plants could reproduce only poorly—or not at all. Ecosystems would thus no longer be able to function in their current form. More than three quarters of the most important crops depend on pollinators in order to be able to produce a high yield and good quality. A loss of pollinators would therefore also lead to economic losses amounting to billions.