Animation of ethnocentrism model
From Axelrod and Hammond, "Evolution of Ethnocentric Behavior" 2003.
The shading of the foreground of a cell indicates the agent's strategy toward agents of its own color, with a dark dot indicating cooperation.
The shading of the background of a cell indicates the agent's strategy toward agents of other colors, with black indicating defection. Thus agents using the ethnocentric strategy have a dark dot on a black background, and egoist agents have a light dot on a black background.
The movie is in Quicktime format and is about 40mb. It can be downloaded from movie.