Dr Nikki Mills is a New Zealand based paediatric ENT surgeon, who has a special clinical and research interest in breastfeeding and is also an International Board Certified Lactation Consultant. Nikki worked for many years at the Starship Children’s Hospital in Auckland, moving in 2020 to Nelson Hospital in Nelson, New Zealand. In this third and final episode of an in-depth conversation, Pam and Nikki continue their deep dive into our biomechanical understandings of infant suck during breastfeeding. This episode considers ultrasound studies of infant suck, and the implications for the clinical support of breastfeeding mother-baby pairs. Dr Pamela Douglas is a GP who works in breastfeeding medicine at the Possums Clinic Brisbane, with special clinical and research interest in breastfeeding, having first qualified as an International Board Certified Lactation Consultant in 1994. Pam is a GP-researcher and founder of the evidence-based Neuroprotective Developmental Care (or 'Possums') programs www.possumsonline.com. Pam is also author of The discontented little baby book: all you need to know about feeds, sleep, and crying.