2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/12755I discuss the evolution of the redshift-space bispectrum via perturbation theory (PT) and large high-resolution numerical simulations. At large scales, we give the multipole expansion of the bispectrum in PT, which provides a natural way to break the degeneracy between bias and $Ω$ present in measurements of the power spectrum distortions. At intermediate scales, we propose a simple phenomenological model to take into account non-linear effects. N-body results show that at small scales the perturbative shape of the bispectrum monopole in redshift-space is preserved, breaking the hierarchical form valid in the absence of distortions.4 pages, 1 figure. To appear in the Proceedings of the 14th IAP Meeting, Wide Field Surveys in CosmologyAstrophysicstext