Watch The Blue Realm online: Episode 3 Tentacles

Tentacles follows Dr. Jennifer Mather as she leads a team of renowned scientists to the beautiful Caribbean island of Bonaire.Their mission is to prove a controversial theory: reef squid speak to each other with a complex language they paint on their skin. The episode features the bizarre courtship and never- before-filmed egg-laying rituals of reef squid. Travel to the Pacific Northwest for an encounter with the world's largest Octopus . You'll also witness the fascinating hunting technique of the cuttlefish.

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