Black soldier flies mate and lay eggs inside these cages at EnviroFlight. Dan Charles/NPR hide caption

itoggle caption Dan Charles/NPR

Genetically modified to be enriched with beta-carotene, golden rice grains (left) are a deep yellow. At right, white rice grains. Isagani Serrano/International Rice Research Institute hide caption

itoggle caption Isagani Serrano/International Rice Research Institute

A cornfield is shrouded in mist at sunrise in rural Springfield, Neb. Nati Harnik/AP hide caption

itoggle caption Nati Harnik/AP

Piglets in a pen on a hog farm in Frankenstein, Mo. Jeff Roberson/AP hide caption

itoggle caption Jeff Roberson/AP

An irrigation pivot waters a corn field in Nebraska. Many farmers in Nebraska and Kansas rely on irrigation to water their corn fields. But the underground aquifer they draw from will run dry. Nati Harnik/AP hide caption

itoggle caption Nati Harnik/AP

Beef cattle stand in a barn on the Larson Farms feedlot in Maple Park, Ill. Daniel Acker/Landov hide caption

itoggle caption Daniel Acker/Landov

A man cleans quinoa grain in Pacoma, Bolivia. Juan Karita/AP hide caption

itoggle caption Juan Karita/AP

Beehive designer Johannes Paul (right) and Natural England's ecologist Peter Massini, with a brood frame colonized with bees from the "beehaus" beehive on the roof of his house in London in 2009. Sang Tan/AP hide caption

itoggle caption Sang Tan/AP

The label for the berry blend recalled in June because of pomegranates linked to a hepatitis A outbreak. Food and Drug Administration hide caption

itoggle caption Food and Drug Administration

Farmworkers harvest and package cantaloupes near Firebaugh, Calif. Gosia Wozniacka/AP hide caption

itoggle caption Gosia Wozniacka/AP

Wheat grows in a test field at Oregon State University in Corvallis. Some scientists believe that there's a chance that genetically modified wheat found in one farmer's field in May is still in the seed supply. Natalie Behring/Bloomberg via Getty Images hide caption

itoggle caption Natalie Behring/Bloomberg via Getty Images