Hi, I have written a smallish genetic algorithm in PERL; I have checked out the AI::Gene::Sequence module, but it's not exactly what we need in the evolutionary algorithms. Right now, it has several submodules for crossover, mutation, bitstring individuals, and so on. The GA is working (alongside an XSLT GA) at http://geneura.ugr.es/cgi-bin/ga-xsl/ga-xsl.cgi I would like to know if such a module would be necessary, could be included in CPAN, and if the name AI::Evolution would suit it. See ya! J