Scientists are trying to talk to dolphins. It’s a decadeslong quest to decode an alien culture, and it could open the door to communicating with thousands of species.

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In the Deep is a new series by Quartz on the wonders of our oceans and the intrepid scientists seeking to understand them. From the depths of the ocean to vibrant coral reefs, we follow a new generation of explorers using cutting edge technology to push the frontiers of human understanding.

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Quartz is a digitally native news outlet dedicated to telling stories at the intersection of the important and the interesting. Visit us at https://qz.com/ to read more.