Microplastic particles are widespread in Monterey Bay anchovies and the diving seabirds that eat them as a main food source – which could possibly impact the birds’ reproductive systems, according to a new study. Scientists at UC Santa Cruz, UC Davis and the San Diego Zoo Wildlife Alliance studied microplastic pollution in Monterey Bay by testing microplastic particles in the water and in anchovies and common murres, a bird species found in abundance in the region.