Changing SeasMajestic Mantas Season 9 Episode 4 | 27m 13s Mexico’s remote Revillagigedo Archipelago is a hotspot for oceanic mantas. Scientists are studying the local population using photo ID techniques and acoustic tags which track the movements of these mysterious fish. They are also conducting experiments to see if the filter-feeding rays are impacted negatively by microplastics, tiny pieces of toxic trash that float in the ocean. Aired: 06/28/17 Rating: NR Closed CaptioningVideo has closed captioning.checkmarkAdd to WatchlistProblems Playing Video?Report a ProblemClosed CaptioningShare:Share this video on FacebookFacebookShare this video on TwitterTwitterShare this video on Google PlusGoogleShare this video via EmailE-mailEmbedEmbed Code for this videoEmbed CodeChanging SeasMajestic MantasSeason 9 Episode 4Width in pixels px Height in pixels px Copied to your clipboardLabelCopy to ClipboardClick to copy embed code for videoCloseCloseReport a ProblemBefore you submit an error, please consult our Troubleshooting Guide.Type of ErrorVideo doesn't loadVideo loads, but doesn't playVideo jumps back/forwardOnly audio is streamingSponsorship playback errorOtherPlease add more detailsCancelSubmit ReportYour report has been successfully submitted. Thank you for helping us improve PBS Video.CloseCloseCloseMajor funding for this program was provided by the Batchelor Foundation, encouraging people to preserve and protect America’s underwater resources. Additional funding was provided by Diver’s Direct/Emocean Sports, inspiring the pursuit of adventures and watersports; the Do Unto Others Trust, The William J. and Isobel G. Clarke Foundation, Lady Suzanna P. Tweed and Carleton Tweed Charitable Foundation, and by Skip and Diane Day.