Rice may be one of the most plentiful crops on Earth, but there are only so many grains you can naturally obtain from a given plant. Scientists may have a straightforward answer to that problem: edit the plants to make them produce more. They've used CRISPR/Cas9 gene editing to create a rice plant variety that produces 25 to 31 percent more grain per plant in real world tests, or far more than you'd get through natural breeding. The technique "silenced" genes that improve tolerances for threats like drought and salt, but stifle growth. That sounds bad on the surface, but plants frequently have genetic redundancies -- this approach exploited this duplication just enough to provide all of the benefits and none of the drawbacks.