Ketchup was brought in to edit, design, picture-edit and index this fully updated edition, boasting brilliant colour, the legendary naturalist's great work on animal behaviour – first published in 1990 – new insights on the activities of the animal kingdom.

In Life on Earth, Sir David showed how each group of animals evolved. In Living Planet he looked at the way they have adapted to the whole range of habitats in which they live. In The Trials of Life, he completes the story by revealing how animals behave – and why.