TV-G
S9 • E4    Jun 28, 2017
Mexico’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.

Where to Watch Changing Seas - S9 • E4

  • Craig SechlerNarrator (voice)