Blue Realm - Episode 4: Mysterious 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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