YouTube link, if you don't want to download the video:<p><a href="http://www.youtube.com/watch?v=oCXzcPNsqGA" rel="nofollow">http://www.youtube.com/watch?v=oCXzcPNsqGA</a>
Classic work - the paper is well worth reading. A couple of highlights:<p>Using a fitness metric of 'distance travelled by CG', one solution was simply to build a very tall tower, and wait for it to fall over.<p>The evolved solutions would exploit bugs in the physical modelling - exploding the maths by moving two blocks very close together.
You can run the simulations on your computer as a screensaver:
<a href="http://www.spiderland.org/screensaver" rel="nofollow">http://www.spiderland.org/screensaver</a>