BBC1’s Blue Planet III earns five stars by revealing the astonishing scale and ingenuity of life beneath the waves
Narrated by Sir David Attenborough, the six-part series explores coral reefs stretching for thousands of miles, created by countless tiny polyps
Highlights include harlequin shrimp dismantling a starfish, dolphins using sponges to trap prey and nurse sharks herding shoals of fish towards the shore
Filmed over four years and 100 expeditions, the programme combines breathtaking images with crisp storytelling
Even a fiddler crab’s startled reaction becomes a tiny comic masterpiece in this remarkable return to the deep.