At Tuticorin harbor in southern India, researchers examining piles of discarded bycatch identified a seahorse that had gone unrecognized as its own species for more than a century. Even what gets thrown away can hold important clues about how to better protect ocean life. Here's what to know At Tuticorin harbor, an international research team determined that Hippocampus amandavincentae had long been mistaken for another seahorse species, Oceanog…