The Environmental Protection Agency (EPA) released a final biological evaluation showing that a single chemical, the bee-killing insecticide sulfoxaflor, is likely putting 4% of all endangered or threatened plants and animals in jeopardy of extinction. In addition to the extinction risk it poses to more than five dozen species, the EPA found that sulfoxaflor is likely to harm another 462 endangered species, including 314 plants. Sulfoxaflor has previously drawn controversy because of its significant harms to bees.