The colonization of the seafloor is one of the most important events in evolutionary history, leading to an explosive radiation and large-scale morphological diversification of marine phyla. Flatfishes are one of the most successful groups of seafloor colonizers and have evolved the most specialized body plan (i.e., flat and asymmetrical) among the teleosts. However, the origin and formation mechanism of the peculiar morphology of flatfishes had long been unclear.
Click here for original story, Researchers solve puzzle of origin and formation of specialized body plan in flatfishes
Source: Phys.org