Flatfish offer an evolutionary puzzle: How did one eye gradually migrate to the other side? Flatfish offer an evolutionary puzzle: How did one eye gradually migrate to the other side? your-feed-science, Fish and Other Marine Life, Research, Evolution (Biology), Genetics and Heredity, Fossils, Eyes and Eyesight, Asteroids, Anatomy and Physiology, Darwin, Charles Robert, Biology and Biochemistry NYT > Science