biology." http://en.wikipedia.org/wiki/Game_theory   The Prisoner’s Dilemma Game is described as:   "The Prisoner’s Dilemma was originally framed by Merrill Flood and Melvin Dresher working at RAND in 1950. Albert W. Tucker formalized the game with prison sentence payoffs and gave it the "Prisoner’s Dilemma" name (Poundstone, 1992). The classical prisoner’s dilemma