Square Watermelon - A new Shape of Fruit

The first time I saw this picture of square watermelons, I straightly shout in my mind "what a creative photoshop trick!" and I was definitely wrong. They are really square.You probably think it's result by a genetic engineering but in fact those are made the old-fashioned way. They are grown in boxes, and take the cubic shape gradually as they grow. It’s a labor-intensive process, but the end