Africa

David Attenborough continues his exploration of the continent in east Africa, which is a haven for life and supports a higher density of large mammals than anywhere else on Earth. From dense forests to snow-capped peaks, steamy swamps to endless savannah, it's also a land of unpredictable extremes, where creatures must adapt to survive. In Tanzania, a tiny lizard risks its life to eat flies from the face of a sleepy lion. The nesting habits of the 4ft shoebill are also captured on camera - the giant bird has two chicks, but due to sibling rivalry only one will survive. On the plains of Amboseli, a baby elephant is near to death in the drought, so its mother leaves the herd to stay with her offspring until the bitter end.