Abstract: <a href="http://www.pnas.org/content/early/2014/05/21/1407083111" rel="nofollow">http://www.pnas.org/content/early/2014/05/21/1407083111</a><p>Another recent ant-related story:
<a href="https://news.ycombinator.com/item?id=7658551" rel="nofollow">https://news.ycombinator.com/item?id=7658551</a>