2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/44166We review the experimental evidence on firstly, strangeness production as a signature for the QCD phase transition and secondly, pentaquarks, the latest and most exotic manifestations of strangeness in hadrons.34 pages, 22 figures, Proceedings of the International Workshop "IX Hadron Physics and VII Relativistic Aspects of Nuclear Physics: a Joint Meeting on QCD and QGP", (HADRON-RANP 2004), 28 March - 03 April, 2004, Rio de Janeiro, BrasilHigh Energy Physics - Phenomenologytext