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 growth. Prompted by an enthusiastic ornithologist at the BBC Natural History Unit, Attenborough then turned his attention to the animal kingdom and in particular, birds. As he was neither an obsessive twitcher nor a bird expert, he decided he was better qualified to make "The Life of Birds" (1998) on the theme of behaviour. The documentary series won a Peabody Award the following year. The order of the remaining "Life" series was dictated by developments in camera technology. For "The Life of Mammals" (2002), low-light and infrared cameras were deployed to reveal the behaviour of nocturnal mammals. The series contains