Summary: <p><span style="color: #22242f; font-family: 'Open Sans', Helvetica, Arial, sans-serif; font-size: 12px; line-height: 20.1599998474121px;">[2015-01-20 12:00:00] </span>For groups to function well, there needs to be a certain level of unselfishness among its members. This hour, we’ll talk about how humans developed concern for the welfare of others – and about the potential downsides of selflessness – with <a href="https://twitter.com/david_s_wilson" target="_blank">David Sloan Wilson</a>, president of the Evolution Institute and SUNY distinguished professor of biology and anthropology at Binghampton University. His new book is <a href="http://www.amazon.com/Does-Altruism-Exist-Foundational-Questions/dp/0300189494/ref=sr_1_1?ie=UTF8&qid=1421689088&sr=8-1&keywords=Does+Altruism+Exist" target="_blank"><em>Does Altruism Exist?: Culture, Genes, and the Welfare of Others</em></a> (Yale University Press).</p>
