Animations of the evolution of model M1 from Hunt et al. (2021), a generic merger of a dwarf galaxy into a high-resolution, highly stable disc galaxy. The animations are provided as mp4 (recommended), and as gifs if your media player does not support the mp4 codec. M1-Morphology+kinematics: Time evolution of Figure 4 from Hunt et al. (2021) showing the face-on (left-hand and centre columns) and edge-on (right-hand column) view of the disc coloured by number count (upper left panel and right-hand column), mean radial velocity (upper centre), mean vertical position (lower left), and mean vertical velocity (lower centre) for Model M1. The dwarf particles are only included in the right-hand column, but its position is marked with a green dot in the face-on panels. M1-AASpiral: Time evolution of Figure 7 from Hunt et al. (2021) showing the phase spirals shown across the face of Model M1 in 1 × 1 kpc bins from X, Y = −15 to 15 kpc. Note that the global vertical spiral is visible owing to the offset of the individual phase spirals from (vz, z) = (0, 0) and the vz axes have been re-scaled to compensate for the change in velocity dispersion with radius (see the text in Hunt et al. 2021). M1-vertical-radial: Time evolution comparing the z-vz spirals (left) from Figure 7 of Hunt et al. (2021) as shown in M1-AASpiral, and the R-vR phase spirals (right) of Hunt et al. (2024).