Tool use increased diet quality of wild bearded capuchin monkeys in two ways. First, it provided a more tightly balanced mix of macronutrients, rich in energy-providing fat and carbohydrate. Second, the macronutrient mix was more concentrated than on non-tooling days because it had less nutrient-diluting fiber. Reduced fiber not only increases the concentration of nutrients in the food, but also increases the efficiency with which they are absorbed from the gut.
Check out the paper at [ Ссылка ]01205-2.
P. Izar, L. Peternelli-dos-Santos, J.M. Rothman, D. Raubenheimer, A. Presotto, G. Gort, E.M. Visalberghi, and D.M. Fragaszy (2022). Stone tools improve diet quality in wild monkeys. Curr. Biol. 32.
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