 Are there any very long term genetic programming experiments?
roundsquare: I'm not sure I see a purpose.  Even if you aren't looking to product "intelligence" but just something interesting, I don't think its likely.  The ratio size and complexity of the environment (fitness function, domain of the chromosomes, degree of mutation, etc...) compared to the size of each creature (i.e. how many possible chromosome possibilities there are) would have to be enormous to make a long experiment worthwhile.