{"id":245604,"date":"2017-08-29T14:48:27","date_gmt":"2017-08-29T17:48:27","guid":{"rendered":"http:\/\/revistapesquisa.fapesp.br\/?p=245604\/"},"modified":"2017-09-08T16:08:03","modified_gmt":"2017-09-08T19:08:03","slug":"how-capuchin-monkeys-break-open-cashew-nuts","status":"publish","type":"post","link":"https:\/\/revistapesquisa.fapesp.br\/en\/how-capuchin-monkeys-break-open-cashew-nuts\/","title":{"rendered":"How capuchin monkeys break open cashew nuts"},"content":{"rendered":"<div id=\"attachment_245967\" style=\"max-width: 310px\" class=\"wp-caption alignright\"><a href=\"http:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2017\/08\/17357336_10207445447368976_1542674171_o.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-245967\" src=\"http:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2017\/08\/17357336_10207445447368976_1542674171_o-300x169.jpg\" alt=\"\" width=\"300\" height=\"169\" \/><p class=\"wp-caption-text\"><span class=\"media-credits-inline\">Tiago Fal\u00f3tico<\/span><\/a> Laterally placed cashew nut allows for more efficient breaking<span class=\"media-credits\">Tiago Fal\u00f3tico<\/span><\/p><\/div>\n<p>Capuchin monkeys of the species <em>Sapajus libidinosus<\/em> are very resourceful. At Serra da Capivara National Park in the Brazilian state of Piau\u00ed, these monkeys use stones and branches as tools to process and obtain food, thereby ensuring researchers\u2019 attention for hours on end as they study this rare behavior in the animal world. One such specialist is biologist Tiago Fal\u00f3tico of the Psychology Institute at the University of S\u00e3o Paulo, first author of a paper that describes one aspect of how the monkeys break open cashew nuts (<em>Folia Primatologica<\/em>, March 1, 2017). Fal\u00f3tico observed that six adult capuchins (out of a group of 30) sometimes position the nut laterally so it can be cracked open by a stone using less force. In some cases, the monkey needs to bite off one of the lobes in order to balance the nut on a rock that serves as a base. In the researchers\u2019 interpretation, as they get older, some monkeys acquire an understanding of how to break open the nut more easily. This perception is thought to be one more element in the behavior of these animals, which adapt the weight of the stone and the type of tool according to the hardness of the nut.<\/p>\n","protected":false},"excerpt":{"rendered":"Capuchin monkeys have special technique to break open cashew nuts","protected":false},"author":475,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[1651],"tags":[209,218,266],"coauthors":[785],"class_list":["post-245604","post","type-post","status-publish","format-standard","hentry","category-notes","tag-biology","tag-ethology","tag-zoology"],"acf":[],"_links":{"self":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/245604","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/users\/475"}],"replies":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/comments?post=245604"}],"version-history":[{"count":0,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/245604\/revisions"}],"wp:attachment":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/media?parent=245604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/categories?post=245604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/tags?post=245604"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/coauthors?post=245604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}