“Researchers Discover Bacterial Charity Work”
Howard Hughes Medical Institute (HHMI)
Henry H. Lee, Michael N. Molla, Charles R. Cantor & James J. Collins
“Bacterial charity work leads to population-wide resistance”
Nature 467, pp. 82-85 (02 September 2010) doi:10.1038/nature09354
Selfless defense of an E. coli colony. Given that evolution is gene based, altruism makes sense. W.D. Hamilton rides again.