Everyone's favourite nature narrator is entering into his 100th year and releasing a brand-new documentary. But this is not a gentle reflection on the past century: it's an impassioned call to arms.

Attenborough's and Butfield's “Ocean” is the complementary book to a National Geographic film of the same name available on the Disney family of streaming services.

"After living for nearly a hundred years on this planet, I now understand that the most important place on Earth is not on land, but at sea.”