The Blue Planet
BBC TWO
Monday 18 December 2017 17:00 - 18:00 (60 mins)
6/8. Coral Seas: David Attenborough narrates a natural history of the oceans. Developed over centuries, coral reefs house fragile ecosystems, but they too have to fight to survive. Also in HD. [AD,S]
The Blue Planet may be available on playback
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