Sample-to-sample peak areas of the subset of polyamine bile amidates and two commonly known bile acids, taurine, and glycine amidates detected in a public dataset (GNPS/MassIVE:MSV000086131)78containing different animals with a carnivorous, omnivorous, and herbivorous diet. A higher abundance of the amidates was observed in carnivores. A non-parametric Kruskal-Wallis test followed by Wilcoxon was performed, and all p values were corrected for multiple comparisons using the Benjamini-Hochberg correction. Horizontal lines indicate the median value, the first (lower) and third (upper) quartiles are represented by the box edges, and vertical lines (whiskers) indicate the error range which is 1.5 times the interquartile range. Green circles in the figure represent library matches of the resource to MS/MS spectra in the GNPS reference library. SeeFigure S4andTable S4.
