There have been attempts to reproduce it and expand on it: http://ero.matfyz.cz/ http://ero.matfyz.cz/ (The demos here are really slick) http://www.cs.bham.ac.

There have been attempts to reproduce it and expand on it: http://ero.matfyz.cz/ http://ero.matfyz.cz/ (The demos here are really slick) http://www.cs.bham.ac.uk/~txm/creatures/index.html http://www.cs.bham.ac.uk/~txm/creatures/index.html But in general, sims' results are still among the most impressive ALife demonstrations.