Nature documentary series looks at marine invertebrates, some of the planet's most bizarre and beautiful animals, including Humboldt squid and giant octopuses. Show more

The nature documentary examines primates, including armies of Hamadryas baboons battling on the plains of Ethiopia, and macaques in Japan lounging in thermal springs. Show more

The nature series turns to plants and looks at the ingenious solutions that they employ to counter life's challenges, such as spring-loaded traps, suckers and claws. Show more

The nature documentary explores mammals' ability to learn new tricks to survive, and features unique footage of a killer whale hunting elephant seal pups. Show more

David Attenborough examines how living long enough to breed is a monumental struggle, and how many animals and plants go to extremes to give themselves a chance. Show more

Nature documentary looking at the fish that dominate the planet's waters through their variety of shapes and behaviours, some like creatures from a fairytale. Show more

David Attenborough reveals the strategies used by reptiles and amphibians to conquer their shortcomings, whether for safety, breeding or capturing prey. Show more

David Attenborough looks at how mammals dominate the planet through having warm blood and caring for their young, including Weddell seals, caribou and humpback whales. Show more

The nature documentary looks at birds and, with slow-motion cameras and aerial photography, reveals some of the extraordinary things that having feathers allows them to do. Show more

The nature documentary looks at the most successful animal group, with 200 million insects for each human. The key is an armoured covering that takes on almost any shape. Show more