The development of expertise at cracking palm nuts by wild bearded capuchin monkeys, Sapajus libidinosus - Fragaszy, Dorothy; Aiempichitkijkarn, Nalina; Eshchar, Yonat; Mangalam, Madhur; Izar, Patricia; Resende, Briseida Dôgo de; Visalberghi, Elisabetta (Animal behaviour, 2023)