The research at the Laboratory for Fluid Dynamics in Nature (FINLAB) is focused on two main themes: fluid flows in nature and advanced computational methods for fluid flows. The natural systems studied in the FINLAB range from insect respiratory flows, which occur at the microscale, to human cardiovascular flows and other biomedically relevant flows, to planetary atmospheric flows with length scales on the order of tens of kilometers. There is an emphasis on bioinspiration, on advanced computational methods, including machine learning, on algorithms, and on experimental validation.