Pierre Léopold joined the SAB in 2018. In January 2019 he became the Director of the Institut Curie Research Center’s Developmental Genetics and Biology Unit and leads the Genetics and Physiology of Growth team. Previously he was Inserm Research Director, and head of a team at the Institute of Biology Valrose (Nice). Former student of the Ecole Normale Supérieure de St Cloud, he obtained a PhD in Biology at the University of Nice and a post-doctorate at the University of California, San Francisco. His research focuses on the study of organism growth and uses the Drosophila fly as a biological model. Using this simple model, the team has uncovered some key mechanisms for controlling the growth of an organism in response to changes in its nutritional environment. This work made it possible to obtain the first European ERC Advanced funding in 2010. More recently, the team has launched a new series of works aimed at understanding the mechanisms of harmonization of growth between different parts of the body. This research questions the fundamental principles that allow the maintenance of body proportions within species. In the medium term, they must provide a better understanding of the normal growth of tissues during development, but also of pathological growth as observed in tumor development or tissue regeneration. The recent advances made by the team were rewarded in 2015 by obtaining new ERC Advanced funding.