Movie 1.

All data points (i.e. individual postures) of all flies in the analysis pool plotted, one after the other, on top of each other in 2D subspaces spanned by PCs 1 to 5. Arrangement as presented in Fig. 5. Individual colors correspond to individual flies (n = 88) but are not unique throughout the complete visualization. Note the relatively invariant elliptic shape of the data associated with individual flies in the subspace spanned by PC 1 and 3.