The above screenshot is taken at just over 10,000 iterations into the animation. Langton’s Ant will, if undisturbed, create a “highway” which will proceed off into infinity unless the world it is crawling wraps at the edges, as this one does.
If you have seen one Langton’s Ant animation you have probably seen them all, though in this one I added a heat map which shows the number of times the Ant has visited each cell. It will take a while to begin to see different colors, and everything will look blue for quite some time. The above screenshot of the heat map was taken at approximately 100,000 iterations.