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The Deep

The deep is perhaps the most hostile environment on earth, at least to us - a world of crushing pressure, brutal cold and utter darkness. We have barely begun to explore it, and yet it is the largest living space on the planet. Scientists already think that there is more life in the deep than anywhere else on earth. This episode takes us on an epic journey into the unknown, a realm that feels almost like science fiction. We discover alien worlds, bizarre creatures and extraordinary new behaviours never seen before. We encounter savage hordes of Humboldt squid hunting lanternfish in the depths and coral gardens flourishing in absolute darkness, with more species of coral to be found in the deep than on shallow tropical reefs.

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  • Originally Aired November 5, 2017
  • Runtime 58 minutes
  • Content Rating United States of America TV-PG
  • Network BBC One
  • On Other Sites IMDB
Name Type Role
David Attenborough Writer
David Attenborough Host
Orla Doherty Director