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Coral Reefs

Coral reefs are home to a quarter of all marine species. Survival in these undersea mega-cities is a challenge with many different solutions. A turtle heads to the reef's equivalent of a health spa - but she must use trickery to avoid the queue. A remarkable Grouper uses the fish equivalent of sign language to collaborate with an octopus, flushing their prey out of hiding holes. A metre-long, ferocious-jawed Bobbit Worm hides in its tunnel. Monocle Bream retaliate by squirting water to expose its sandy lair.

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  • Originally Aired November 12, 2017
  • Runtime 58 minutes
  • Content Rating United States of America TV-PG
  • Network BBC One
  • On Other Sites IMDB
  • Created June 18, 2021 by
    Mattman583 mod
  • Modified October 19, 2023 by
    Mattman583 mod
Name Type Role
David Attenborough Writer
David Attenborough Host
Jonathan Smith Director