Seeing a baby make its first moves is a magical time. It marks the beginning of their independence. And it’s something that is often tracked using developmental milestones, but are they actually more problematic than they are useful? India speaks to Professor Karen Adolph who shares her problems with milestones and discusses the cultural expectations of early development. She also hears from Dr Vanessa Cavallera from the World Health Organisation about the work they’re doing to update their 2006 milestone graph and the future of infant development. Presented by India Rakusen. Producer: Georgia Arundell. Series Producer: Ellie Sans. Executive Producer: Suzy Grant. Commissioning Editor: Rhian Roberts. Original music composed and performed by The Big Moon. Mix and Mastering by Charlie Brandon-King. A Listen production for BBC Radio 4.