To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S8. Example circumnutating and non-circumnutating robotic simulation of root growth through an obstacle course of irregularly spaced pegs. Mechanism and function of root circumnutation Isaiah Taylor, Kevin Lehner, Erin McCaskey, Niba Nirmal, Yasemin Ozkan-Aydin, Mason Murray-Cooper, Rashmi Jain, Elliot W. Hawkes, Pamela C. Ronald, Daniel I. Goldman, and Philip N. Benfey PNAS. 2021. 118:None-None DOI: 10.1073/pnas.2018940118 Download Original Video Browse All Videos »