Dear MARMAMers, The following publication is now available on our website (monkeymiadolphins.org). In addition to reviewing the male alliances in Shark Bay, the paper explores possible reasons for the apparent convergence in the use of synchrony in alliances in humans and dolphins and it also contains a discussion of extreme brain size evolution in mammals (humans, elephants, dolphins). Also, for those interested in the social intelligence hypothesis, I would encourage you to visit the Royal Society Webpage to have a look at other papers in the same volume, which are derived from a meeting last year celebrating the 30th anniversary of Nick Humphrey's landmark publication on the topic. 2007. Connor R.C. Dolphin social intelligence: complex alliance relationships in bottlenose dolphins and a consideration of selective environments for extreme brain size evolution in mammals. Philosophical Transactions of the Royal Society B. FirstCite Early Online Publishing. DOI: 10.1098/rstb.2006.1997 Richard Connor