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Blue Planet II

Series 2 Episode 5: Green Seas

It is the green of the sea that brings life to oceans. Here, sunlight powers the growth of kelp, mangroves and sea grass. The green seas teem with life, where cuttlefish do battle for a mate and an octopus outwits deadly sharks.

Category
Documentary / Nature
Original air date
2017-11-26
Cast and crew
  • David AttenboroughNarrator