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\section{Introduction}  Our curiosity about Neanderthals has been increasing steadily, specially during the last 20 years, with 2055 papers already published (12 papers in 1994, 215 papers in 2014; source: Scopus, accessed March 27th, 2015). Our current knowledge is becoming deeper in areas like chronology (e.g. \cite{Hardy_2010} \cite{Gaudzinski_Windheuser_2014} \cite{Higham_2014}), ecology (e.g. \cite{Stewart_2005} \cite{Finlayson_2007} \cite{Henry_2010}\cite{Fiorenza_2011}  \cite{Hardy_2011} \cite{Fa_2013} \cite{Mateos_2014} \cite{Germonpr__2014}), population dynamics (e.g. \cite{Trinkaus_1995} \cite{Premo_2008} \cite{Fabre_2009} \cite{S_rensen_2011} \cite{Bocquet_Appel_2013}), adaptive traits (e.g. \cite{Sorensen_2001} \cite{Wynn_2004} \cite{S_rensen_2009} \cite{Daujeard_2012} \cite{Rae_2011} \cite{L_pez_Garc_a_2012}), diet (e.g. \cite{Stringer_2008} \cite{Richards_2009} \cite{Henry_2010} \cite{Fa2013233} \cite{Sistiaga_2014}), technology and cognition (e.g. \cite{Wynn2004467} \cite{Hardy201323} \cite{Fern_ndez_Peris_2012} \cite{Riel_Salvatore_2010}) , genetics (e.g. \cite{Fabre_2009} \cite{Pr_fer_2013} \cite{Briggs_2009} \cite{Sanchez_Quinto_2014} \cite{Vernot_2014}) and their relationship with anatomically modern humans (\cite{Gibbons_2014} \cite{Sankararaman_2012} \cite{Banks_2008} \cite{d_Errico_1998}). Distribution papers: \cite{Krause_2007} \cite{Roebroeks2002} \cite{Roebroeks_2006} \cite{Skrzypek_2011} \cite{_lvarez_Alonso_2014} \cite{Wenzel_2007}