a co-production of Tigress Productions Limited and Thirteen/WNET New York in association with British Broadcasting Corporation ; producer, Linda Bell ; director, David Allen
an IWC Media production for the BBC ; produced by Michael Simkin and Ross Harper ; directed by David Wilson, Ishbell Hall, Michael Simkin and Ross Harper
Disneynature presents a BBC, Greenlight Media, Discovery Channel co-production, a BBC Natural History Unit film ; produced by Alix Tidmarsh and Sophokles Tasioulis ; written by Leslie Megahey, Alastair Fothergill, Mark Linfield ; directed by Alastair Fothergill and Mark Linfield