To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 Example terrestrial and aquatic takeoff in light video setup (Fig. S1). Note: two cameras were used at oblique angles to provide 3D kinematics and so may not be perfectly perpendicular to the animal's motion. Aquatic and terrestrial takeoffs require different hindlimb kinematics and muscle function in mallard ducks Kari R. Taylor-Burt, and Andrew A. Biewener Journal of Experimental Biology 2020. 223:None-None; doi: 10.1242/jeb.223743 Download Original Video