David Attenborough series on the natural history of the polar regions; Attenborough appeared on screen and authored the final episode, in addition to performing voiceover duties. Attenborough introduced and narrated the Unit's first 4K production "Life Story." For "Planet Earth II" (2016), Attenborough returned as narrator and presenter, with the main theme music composed by Hans Zimmer. In October 2014, the corporation announced a trio of new one-off Attenborough documentaries as part of a raft of new natural history programmes. "Attenborough's Paradise Birds" and "Attenborough's Big Birds" was shown on BBC Two and "Waking Giants", which follows the discovery of giant dinosaur
David Attenborough his career. He also has honorary Doctor of Science awards from the University of Cambridge (1984) and University of Oxford (1988). In 2006, the two eldest Attenborough brothers returned to their home city to receive the title of Distinguished Honorary Fellows of the University of Leicester, "in recognition of a record of continuing distinguished service to the University." David Attenborough was previously awarded an honorary Doctor of Letters degree by the university in 1970, and was made an honorary Freeman of the City of Leicester in 1990. In 2013, he was made an Honorary Freeman of the City of Bristol.