Prominent scientists are in a bitter struggle over the origins of kindness.
MORE: http://blogs.scientificamerican.com/primate-diaries/2012/07/09/the-good-fight/
See also...
Love Thy Neighbor, Unless They Are The Weakest Link
http://www.sciencedaily.com/releases/2012/07/120712224624.htm
Scientists place 500-million-year-old gene in modern organism
http://phys.org/news/2012-07-scientists-million-year-old-gene-modern.html
