Author Correction: Polygonal motion and adaptable phototaxis via flagellar beat switching in the microswimmer Euglena gracilis

In the version of this Article originally published, the angular oscillation of amplitude in Fig. 4a was incorrectly labelled ζ ; it should have been ξ . Also, the blue line in the top-right corner of Fig. 6d should not have been dash-dotted but solid. These have now been corrected in all versions of the Article.