Venkatesh Rao@vgrDunbar (of Dunbar number fame) has a solid looking new paper outQuote TweetChristian Nawroth @Goatsthatstare@ecoevo.social@GoatsThatStare·Jul 24, 2017Why are there so many explanations for primate brain evolution? http://buff.ly/2uNmo773:31 PM · Jul 24, 20171 Retweet4 Likes