Sergey Gavrilets recently had paper on “altruistic bullies” come out in Nature Communications:
http://www.nature.com/ncomms/2014/140326/ncomms4526/full/ncomms4526.html
The work has been discussed in Time Magazine: “Science Proves It: Greed Is Good”
http://time.com/41680/greed-is-good-science-proves/
and in Science Daily: “Altruistic side of aggressive greed”
http://www.sciencedaily.com/releases/2014/03/140326092600.htm
as well as in several international venues. Congrats Sergey!