Crashing waves, glistening sea spray, a calm expanse of deep blue. These are the images that open “Ocean with David Attenborough,” the veteran broadcaster’s latest film. After decades of sharing stories of life on our planet,

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.”"Today, it is in such poor health I would find it hard not to lose hope were it not for the most remarkable discovery of all,