“…This partitioning is fundamental when it comes to the interpretation of physiology, morphology, or behavior. Yet, as proposed in the current study, dietary categories group together food items that have too wide a range of mechanical properties (Coiner‐Collier et al, ). Besides, the diet of primates can vary dramatically between localities (Butynski, ; Chiarello, ; Cuozzo & Sauther, ; Sauther & Cuozzo, ), between seasons (Brugiere, Gautier, Moungazi, & Gautier‐Hion, ; Chapman, ; MacKinnon & MacKinnon, ), from year to year (Chapman & Chapman, ; Harrison, Morrogh‐Bernard, & Chivers, ; Struhsaker, ), and even between sexes (Bowler & Bodmer, ; Cords, ; Doran‐Sheehy, Mongo, Lodwick, & Conklin‐Brittain, ).…”