text: The eyes of mantis shrimp may make them able to recognize different types of coral , prey species ( which are often transparent or semi-transparent ) , or predators , such as barracuda , which have shimmering scales .
simplified: The eyes of mantis shrimp may recognize different types of coral , prey species ( which are often transparent or semi-transparent ) , or predators , such as barracuda , which have shimmering scales .