ALT The visual abstract shows the manuscript title "Assessing microplastic exposure of the Critically Endangered Mediterranean monk seal (Monachus monachus) on a remote oceanic island" alongside the list of authors. Below, describes that microplastics are in prey and environment, monk seals ingest microplastics, and microplastics can then be found in monk seal scats. Scat samples were collected in the Madeira archipelago, 390 microplastic particles were recovered, the majority were fragments, and the dominant colour was blue.