From bees to bats to butterflies, the creatures that pollinate our food are dying off, The New York Times reports. A team affiliated with the United Nations just released a comprehensive assessment of threats facing the world’s pollinators, concluding that many species will go extinct without an international push to save them. The threatened species include at least 9% of bees and butterflies and about 16% of vertebrate pollinators such as bats and hummingbirds. The reasons are complex, including climate change, disease, and the neonicotinoid pesticides often blamed for bee declines, according to the report. About 35% of the crops produced in any given year rely on animal pollinators.