1/11 Following the sun's seasonal journey and how it affects the lives of all creatures.
9/11 David Attenborough narrates the epic journey of a humpback whale and calf.
BBC Two Scotland
9/11 David Attenborough narrates the epic journey of a humpback whale and calf. (R)
BBC Two except Scotland, Yorkshire
2/11 A look at mountains, from their origins at earth's lowest places to the summit of Everest.
5/11 A look at Earth's most spectacular deserts, revealing the secrets behind desert survival. (R)
7/11 David Attenborough looks at the world's great plains.