Compiled results of the various statistical tools, used to characterize the selection pressure in the CA-BD genes amongst the ruminants selected ‘a priori’ as the foreground branches, as implemented on the datamonkey server, a graphic user interface (GUI) for HyPhy (Hypothesis testing using Phylogenies). NS = non-significant, xPyN (for FEL) = x codon sites under positive and y under negative selective pressure respectively, RuBD = Ruminant beta-defensin