Greater Herring

Greater herring is a species of herring that is native through the Pacific Ocean, but due to global warming caused by man-made structures such as factories, cars, etc, the greater herring is spreading throught the rest of the world's oceans, competing with native herrings. They are filter-feeders that feed on plankton, but can also eat krill, copepods, smaller fish, eggs of other open ocean fish, as well as babies of other fish species, and even baby jellyfishes due to the greater herring's immunity to the poisons of jellyfishes. They are not endangered and are adapting extremely well with climate changes and overfishing due to their fast reproductions and their adapting metabolisms.