Helena Cronin talk on Sex Differences.
Helena Cronin gave a talk on sex differences at the 2014 Extinction Marathon held in London titled Sex at Work: The Tenacious Grip of Extinct ideas. In this brief talk she discusses the biological and evolutionary evidence for sex differences.
Original Video: https://www.youtube.com/watch?v=h3G7x1WA-D0&t=198s
Sex differences in rhesus monkey toy preferences parallel those of children: http://www.sciencedirect.com/science/article/pii/S0018506X08000949