“Just take a bite.” She appraised him suspiciously, then dropped her jaw like a snake and bit into the pitaya’s flesh. “What is this?” she mumbled around ravenous bites. “It’s called a pitaya. Tons of vitamin C and calcium. Our scientists blended in genes from a legume to—.” A wet mouthful of pulp flew across … More The Science of “Syzygy”: Genetic Engineering