As part of a season of programming marking Sir David Attenborough's 90th birthday, four of his favourite films are brought together as the renowned naturalist looks back on his personal highlights.

First transmitted in 2009, Attenborough introduces a very personal film he made about the life, work and thesis of one of the greatest heroes of science and natural history - Sir Charles Darwin.

The film explores the key moments which enabled Darwin to formulate his ideas and reveals how his theory of evolution enabled for the first time a true understanding of how all life on earth relates. Show less