directors, Sharon Adam, Lyndon Bruce, Michael Duffy, Janine Finlay, Valerie Mellon ; executive producer, Jacqueline Smith ; series producer, Matt Barrett ; BBC Studios, the Science Unit, Scotland
a presentation of Films for the Humanities & Sciences ; produced and distributed by Canadian Broadcasting Corporation ; National CBS News ; producer, Kathryn Oughtred
directed by Bruce Mohun ; produced by Sue Ridout ; written by Bruce Mohun, Helen Slinger ; produced by Dreamfilm Productions Ltd. in association with Canadian Broadcasting Corporation
Directed by Shayon Maitra, Narrated by Jamie Effros, Produced by Caleb Hellerman, WGBH Educational Foundation, Global Health Reporting Center, Tangled Bank Studios