Evolution of tidal tail morphology. The top left (blue) models: M20000 (on circular orbit). The bottom left (green) models: M20000_e (on eccentric orbit). The right (purple) models: grid of M20000, M4641, M1000, M464, and M100 clusters on circular orbits. The different columns show the clusters at the age written above each panel. For the 1857 and 4381 Myr models, the whole simulation (middle right), a zoomed-in section of the cluster (middle left), and arbitrary zoomed-in sections along the leading (top right) and trailing (bottom right) tail are shown to compare the position of the tidal tail and the orbit at large distances. The cluster orbit (orange) and the Galactic centre position (black) are shown for reference. All clusters are rotated and placed on the X axis for easier comparison. A movie associated to this figure is available online.