Submerge. Discover. Engage. 0.00/10 2022-06-29 27 minutes.HDMexico’s remote Revillagigedo Archipelago is a hotspot for oceanic mantas. Scientists use photo ID techniques and acoustic tags to study these mysterious fish. They are also researching if the filter-feeding rays are impacted negatively by microplastics – tiny pieces of toxic trash that float in the ocean.An: 2022Studio: PBSPays: United States of America