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Series Premiere

Blue Planet II: Season 1

1x01 One Ocean

  • 2017-10-29T20:00:00Z on BBC One
  • 48 mins
  • United Kingdom
  • English
  • Documentary

Footage of marine life in different environments around the north, beginning with a tropical coral reef which has medicinal properties for dolphins, and is used as a tool by tusk fish. In Japan, a shipwreck is home to the Asian sheepshead wrasse, which can change gender, while in the polar north, walruses struggle to find ice floes for their pups to rest on as climate change takes its toll on the environment.