DeMario Vitalis sits in a 40-foot-by-10-foot container reflecting on his family’s past and his future—and the roots that tie them together. The windowless container the size of a semitrailer sits on a ...

Lettuce grows in one of the Cincinnati Zoo's container farms. Hydroponics technician Zach Burns says he uses red and blue light to grow the plants. Last April, the Cincinnati Zoo started growing some ...