a BBC Studios Natural History Unit production ; a co-production with BBC America, Tencent, WDR, France Televisions and CCTV9 ; a BBC Open University partnership ; executive producer, James Honeyborne ; series producer, Mark Brownlow ; producers, Miles Barton, Orla Doherty, Kathryn Jeffs, Will Ridgeon, John Ruthven, Jonathan Smith
produced by Kartemquin Educational Films ; produced in association with the Independent Television Service ; with additional support from BBC / Nick Fraser, SBS TV Australia, VPRO The Netherlands ; executive producer for ITVS, Sally Jo Fifer ; series producer, Gita Saedi ; executive producers, Steve James, Gordon Quinn ; series editors, David E. Simpson, Steve James ; series story editor, Leslie Simmer