Anglers and scientists found “tongue-eaters” parasites in the mouths of fish off Mexico and discovered a new species, a study said. Photo shared by Mayra Ixchel Grano‑Maldonado Off the western coast ...

Off the western coast of Mexico, anglers hauled in their catch and began the process of taking the fish to a nearby market. Something in the fish's mouth caught their attention - and for good reason.