 In this Wednesday, May 6, 2015 photo, a boy plays with his dog in a village in the Nile Delta town of Behira, 300 kilometers (186 miles) north of Cairo, Egypt. Urban growth has become the chief threat to farmland as Egyptian farmers haphazardly _ and illegally _ build new houses to make room for the next generation. (AP Photo/Mosa'ab Elshamy) 