Title: The destiny of tidal dwarf galaxies Abstract: "Tidal dwarf galaxies (TDGs) and super star cluster (SSC) form in the tidal debris of interacting galaxies but their final destiny remains unclear. Especially because they are not supported by an additional dark matter component, they could be disrupted by stellar feedback, ram pressure stripping or the tidal field. Indications from both observations (Duc et al. 2014) and simulations (Ploeckinger et al. 2015) endorse their survival for at least a few Gyr. TDGs that outlast the tidal arm, from which they originate, are difficult to identify with observations. The questions adressed include: How many of them will be disrupted and form stellar streams? Which environmental effects support their survival? How massive are ancient TDGs, what is their chemical composition and how compact or extended are they? How do the properties of the survivors fit into the categories of observed objects (star cluster, ultra-faint dwarf galaxies, ultra- compact dwarf galaxies, satellite galaxies)?" Update to the original abstract: It is very similar to the original abstract, only the part with the EAGLE simulations is removed. I submitted the abstract right after I started my postdoc position and in the meantime we decided to work on other projects first and analyse the EAGLE simulations in terms of TDGs at a later time.