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- What I Learned from Tickling Apes http://www.nytimes.com/2016/04/10/opinion/sunday/what-i-learned-from-tickling-apes.html?_r=1 5 comments
- What Frans de Waal learned from tickling apes. The mental worlds we share. http://www.nytimes.com/2016/04/10/opinion/sunday/what-i-learned-from-tickling-apes.html?action=click&pgtype=homepage&clicksource=story-heading&module=opinion-c-col-right-region&region=opinion-c-col-right-region&wt.nav=opinion-c-col-right-region&_r=0 3 comments cogsci
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