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Big Blue

The big blue is the world's greatest wilderness, far from shore and many kilometres deep. It's a vast marine desert where there is little to eat and nowhere to hide. Yet it's home to some of the biggest and most spectacular creatures on earth. This episode reveals what it takes to survive in this savage and forbidding world. We witness feats of incredible endurance, moments of high drama and extraordinary acts of heart-wrenching self-sacrifice. Every animal in the big blue must find their own unique way to survive.

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  • Originally Aired November 19, 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
John Ruthven Director