A new, knowledge-filled, episode on corals is coming your way, but to prepare you for it, we bring you an old episode to catch you up to speed. Happy World’s Ocean Day!

Corals are dying. By 2050 we probably won’t have any corals left in our oceans. So scientists around the world are trying to figure out how to regrow coral reefs, and some have even turned to 3D printing for coral restoration. But is this possible? Can technology save corals? 

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