Percussive tool use by Taï Western chimpanzees and Fazenda Boa Vista bearded capuchin monkeys: a comparison

E Visalberghi, G Sirianni… - … Transactions of the …, 2015 - royalsocietypublishing.org
Percussive tool use holds special interest for scientists concerned with human origins. We
summarize the findings from two field sites, Taï and Fazenda Boa Vista, where percussive …

Wild capuchin monkeys spontaneously adjust actions when using hammer stones of different mass to crack nuts of different resistance

Q Liu, DM Fragaszy… - American Journal of …, 2016 - Wiley Online Library
Objectives Expert tool users are known to adjust their actions skillfully depending on aspects
of tool type and task. We examined if bearded capuchin monkeys cracking nuts with stones …

The strategic role of the tail in maintaining balance while carrying a load bipedally in wild capuchins (Sapajus libidinosus): a pilot study

L Massaro, F Massa, K Simpson, D Fragaszy… - Primates, 2016 - Springer
The ability to carry objects has been considered an important selective pressure favoring the
evolution of bipedal locomotion in early hominins. Comparable behaviors by extant primates …