Supporters of efforts to label GMOs in foods turn out at a rally in Denverin 2013. A ballot measure that would such labels failed to pass by a wide margin Tuesday. Luke Runyon/KUNC/Harvest Public Media hide caption

itoggle caption Luke Runyon/KUNC/Harvest Public Media

Sunlight streams into a corn storage building at a Michlig Grain storage facility in Sheffield, Illinois, U.S., on Oct. 31, 2014. The price of corn has been falling for months. Daniel Acker/Bloomberg via Getty Images hide caption

itoggle caption Daniel Acker/Bloomberg via Getty Images

Massachusetts composting companies like City Soil, which turn food waste into compost that can be used on gardens and farms, say they expect to get quite a bit of new business from the food waste ban. Courtesy of City Soil hide caption

itoggle caption Courtesy of City Soil

The scariest part of the holiday comes in the days that follow, as parents fight and negotiate to limit how much candy their kids eat. NPR's Gisele Grayson decided to pay her kids off to give up their loot. iStockphoto hide caption

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Edgar Meadows has been growing Bloody Butcher corn, an heirloom variety, for generations. The name Bloody Butcher refers to the flecks of red mixed onto the white kernels, like a butcher's apron, Meadows says. Roxy Todd/West Viginia Public Broadcasting hide caption

itoggle caption Roxy Todd/West Viginia Public Broadcasting

Researchers at Cold Spring Harbor Laboratory say their new genetic toolkit to improve tomato yield without compromising flavor can be used in all varieties, from plum to cherry. Courtesy of Zach Lippman/Cold Spring Harbor Laboratory hide caption

itoggle caption Courtesy of Zach Lippman/Cold Spring Harbor Laboratory

To turn acorns into something edible, you've got to crack the shells, pick out the nut meats, weed out the bad ones, dry them and grind them into meal. Leah Nash for NPR hide caption

itoggle caption Leah Nash for NPR

Dr. Curtis Chan, a dentist in Del Mar, Calif., loads up a truck with 5,456 pounds of candy to deliver to Operation Gratitude during the Halloween Candy Buyback on Nov. 8 last year. Chan personally collected 3,542 pounds of candy from patients. Courtesy of Curtis Chan hide caption

itoggle caption Courtesy of Curtis Chan

Slovak language instructor Julia Vrablova sought out women who could teach her to make the dough for tahana strudla, which can be made with ground poppy seeds, apple or sour cherries. Courtesy of Sasa Woodruff hide caption

itoggle caption Courtesy of Sasa Woodruff

Elaborately decorated skulls are crafted from pure sugar and given to friends as gifts. The colorful designs represent the vitality of life and individual personality. Karen Castillo Farfán /NPR hide caption

itoggle caption Karen Castillo Farfán /NPR